Nuts are used in conjunction with a mating bolt to fasten parts together. They are held together by a combination of thread friction, a slight expansion of the bolt, and the compression of torque applied to the two seperate pieces. If being used in an application with vibration, a locking mechanism such as lock washers, thread-locking fluid, or lock-wire is advised. Nuts are designed to meet a variety of applications and technical standards in the aerospace industry. Some other types of nuts include wel nuts, wing nuts, square nuts, and t-nuts. Monroe Aerospace is a stocking distributor of Aerospace and Mil-Spec hardware. We have an extensive inventory of nuts. Every part that we sell is in Factory new (FN) condition and we provide our company’s certificate of conformance for all parts on every order. See below for our products.
nut-collage1
Unit of Measure
1 2 3 4 5 
MS21042L MS21042L3
Nut - MS21042L3
$1.25

Nuts

341273
nut-collage1 NAS671C10
Nut S/S-NAS671C10
$0.80

301484
MS21044N MS21044N3
Nut - MS21044N3
$0.37

Nuts

240481
MS21042L MS21042L08
Nut - MS21042L08
$0.69

Nuts

217596
MS21083N MS21083N3
Nut - MS21083N3
$0.26

Nuts

186491
MS21042 MS21042-3
Nut - MS21042-3
$0.73

Nuts

182194
MS21083N MS21083N04
Nut - MS21083N04
$1.54

Nuts

104625
MS21044N MS21044N06
Nut - MS21044N06
$0.55

Nuts

86819
AN315 AN315-4R
Plain Nut - AN315-4R
$0.21

Nuts

82040
MS21042 MS21042-4
Nut - MS21042-4
$1.23

Nuts

77980
MS21042L MS21042L06
Nut - MS21042L06
$0.95

Nuts

77461
MS21044N MS21044N4
Nut - MS21044N4
$0.32

Nuts

74716
NAS679 Self-Locking Machine Nuts NAS679A3W
Hex Nut - NAS679A3W
$1.07

Nuts

68456
MS21043 MS21043-4
Nut - MS21043-4
$1.34

Nuts

55805
MS21083N MS21083N08
Nut - MS21083N08
$0.27

Nuts

49035
MS21083N MS21083N4
Nut - MS21083N4
$0.24

Nuts

48164
MS35650 Plain Hexagon Machine Nuts MS35650-302
Plain Hex Nut - MS35650-302
$0.42

Nuts

45004
NAS679 Self-Locking Machine Nuts NAS679A4W
Hex Nut - NAS679A4W
$0.75

Nuts

44020
MS35649 Plain Hexagon Machine Nuts MS35649-262
Plain Hex Nut - MS35649-262
$0.27

Nuts

43069
MS21042 MS21042-06
Nut - MS21042-06
$0.82

Nuts

41037
MS35649 Plain Hexagon Machine Nuts MS35649-282
Plain Hex Nut - MS35649-282
$0.23

Nuts

39020
MS21044N MS21044N5
Nut - MS21044N5
$0.43

Nuts

38749
MS21042 MS21042-08
Nut - MS21042-08
$0.68

Nuts

37603
MS21042L MS21042L4
Nut - MS21042L4
$0.80

Nuts

37124
MS21042 MS21042-5
Nut - MS21042-5
$1.65

Nuts

36630
MS21044N MS21044N08
Nut - MS21044N08
$0.33

Nuts

36187
AN316 AN316-4R
Jam Nut - AN316-4R
$0.33

Nuts

35185
MS21042L MS21042L04
Nut - MS21042L04
$0.70

Nuts

32518
MS21083C MS21083C04
Nut - MS21083C04
$2.27

Nuts

31749
MS35650 Plain Hexagon Machine Nuts MS35650-3312
Plain Hex Nut - MS35650-3312
$0.49

Nuts

29845
MS21044N MS21044N6
Nut - MS21044N6
$0.60

Nuts

29280
nut-collage1 MS51967-5
Plain Hexagon Nut - MS51967-5
$0.60

Nuts

26105
MS21042 MS21042-04
Nut - MS21042-04
$0.72

Nuts

25765
MS35649 Plain Hexagon Machine Nuts MS35649-2252
Plain Hex Nut - MS35649-2252
$0.35

Nuts

25662
AN315 AN315-6R
Plain Nut - AN315-6R
$0.55

Nuts

24335
MS21042L MS21042L02
Nut - MS21042L02
$1.18

Nuts

21851
MS21044N MS21044N04
Nut - MS21044N04
$1.20

Nuts

20884
MS21042 MS21042-6
Nut - MS21042-6
$1.45

Nuts

19478
MS21044C MS21044C06
Nut - MS21044C06
$0.68

Nuts

19250
AN310 AN310-6
Castellated Nut - AN310-6
$3.56

Nuts

18892
MS21042L MS21042L6
Nut - MS21042L6
$1.51

Nuts

18212
AN315 AN315-3R
Plain Nut - AN315-3R
$0.28

Nuts

18166
MS21042L MS21042L5
Nut - MS21042L5
$1.34

Nuts

17912
MS21044N MS21044N8
Nut - MS21044N8
$1.15

Nuts

17025
MS21044C MS21044C04
Nut - MS21044C04
$1.47

Nuts

15212
AN316 AN316-5R
Jam Nut - AN316-5R
$0.32

Nuts

15031
MS35649 Plain Hexagon Machine Nuts MS35649-242
Plain Hex Nut - MS35649-242
$0.18

Nuts

14798
MS21045 MS21045-6
Nut - MS21045-6
$1.41

Nuts

14498
AN320 AN320-3
Castellated Nut - AN320-3
$2.13

Nuts

13430
MS21083N MS21083N06
Nut - MS21083N06
$1.40

Nuts

13227
AN316 AN316-6R
Jam Nut - AN316-6R
$0.40

Nuts

13151
MS21045 MS21045-06
Nut - MS21045-06
$2.05

Nuts

12969
AN315 AN315-5R
Plain Nut - AN315-5R
$0.35

Nuts

12425
MS35649 Plain Hexagon Machine Nuts MS35649-202
Plain Hex Nut - MS35649-202
$0.35

Nuts

12127
MS35650 Plain Hexagon Machine Nuts MS35650-3252
Plain Hex Nut - MS35650-3252
$0.33

Nuts

12081
MS21045 MS21045-08
Nut - MS21045-08
$1.15

Nuts

11665
MS35650 Plain Hexagon Machine Nuts MS35650-304
Plain Hex Nut - MS35650-304
$0.32

Nuts

10791
MS21044C MS21044C4
Nut - MS21044C4
$1.18

Nuts

10553
NAS679 Self-Locking Machine Nuts NAS679A08W
Hex Nut - NAS679A08W
$0.87

Nuts

10389
MS21046C MS21046C3
Nut - MS21046C3
$1.58

Nuts

9780
MS17826b MS17826-4
Castellated Nut - MS17826-4
$7.60

Nuts

9422
MS21044C MS21044C3
Nut - MS21044C3
$0.55

Nuts

9315
MS21083N MS21083N5
Nut - MS21083N5
QUOTE

Nuts

9271
MS21046C MS21046C4
Nut - MS21046C4
$4.50

Nuts

9266
MS21083C MS21083C06
Nut - MS21083C06
$1.15

Nuts

8591
27FT 27FT1032
Nut - 27FT1032
QUOTE

Nuts

8268
MS35649 Plain Hexagon Machine Nuts MS35649-265B
Plain Hex Nut - MS35649-265B
$0.65

Nuts

8203
AN310 AN310-3
Castellated Nut - AN310-3
$2.12

Nuts

7063
22FH 22FH524
Self Locking Flexloc Nut - 22FH524
$3.34

Nuts

6949
MS35649 Plain Hexagon Machine Nuts MS35649-222
Plain Hex Nut - MS35649-222
$0.42

Nuts

6835
MS21083C MS21083C3
Nut - MS21083C3
$2.27

Nuts

6711
CASTELLATED MS14145L3
Castellated Nut - MS14145L3
$5.86

Nuts

6647
MS35650 Plain Hexagon Machine Nuts MS35650-305T
Plain Hex Nut - MS35650-305T
$0.66

Nuts

6535
MS21043 MS21043-04
Nut - MS21043-04
QUOTE

Nuts

6413
MS21042 MS21042-02
Nut - MS21042-02
$1.12

Nuts

6387
nut-collage1 NAS671-6
Nuts - Part # NAS671-6
$0.29

6250
AN310 AN310-4
Castellated Nut - AN310-4
$2.45

Nuts

6191
MS21043 MS21043-5
Nut - MS21043-5
$3.99

Nuts

6078
MS35649 Plain Hexagon Machine Nuts MS35649-264
Plain Hex Nut - MS35649-264
$0.32

Nuts

6073
MS21083D MS21083D3
Nut - MS21083D3
QUOTE

Nuts

5943
MS21043 MS21043-08
Nut - MS21043-08
$1.36

Nuts

5848
MS21045 MS21045-5
Nut - MS21045-5
$2.90

Nuts

5838
MS21083N MS21083N8
Nut - MS21083N8
$3.80

Nuts

5719
MS21045 MS21045-4
Nut - MS21045-4
$1.85

Nuts

5533
MS17825 MS17825-3
Castellated Nut - MS17825-3
$7.20

Nuts

5386
NAS679 Self-Locking Machine Nuts NAS679A06W
Hex Nut - NAS679A06W
$2.33

Nuts

5125
NAS1291 Self-Locking Machine Nuts NAS1291C4M
Self Locking Hex Nut - NAS1291C4M
$1.89

Nuts

5085
MS21044N MS21044N10
Nut - MS21044N10
$2.96

Nuts

4978
MS21045CadNut MS21045L3
Nut - MS21045L3
$1.83

Nuts

4320
NAS1291 Self-Locking Machine Nuts NAS1291C3M
Self Locking Hex Nut - NAS1291C3M
$1.56

Nuts

3973
MS17826b MS17826-3
Castellated Nut - MS17826-3
$5.80

Nuts

3805
F22NKM/F22NKTM Hex Machine Nuts F22NKTM-02
Low Height Hex Nut With Nylon Cap - F22NKTM-02
$1.18

Nuts

3699
MS21044C MS21044C08
Nut - MS21044C08
$1.23

Nuts

3633
nut-collage1 B0203013-08
Nut - B0203013-08
QUOTE

Nuts

3560
MS20500 MS20500-1032
Nut - MS20500-1032
$2.65

Nuts

3423
CASTELLATED2 MS14144L5
Castellated Nut - MS14144L5
$7.00

Nuts

3340
MS21043 MS21043-06
Nut - MS21043-06
$1.36

Nuts

3258
MS35650 Plain Hexagon Machine Nuts MS35650-3314
Plain Hex Nut - MS35650-3314
$1.56

Nuts

3080
MS35649 Plain Hexagon Machine Nuts MS35649-2254
Plain Hex Nut - MS35649-2254
$0.71

Nuts

3064
MS21044D MS21044D3
Nut - MS21044D3
$2.12

Nuts

3011
MS35649 Plain Hexagon Machine Nuts MS35649-244
Plain Hex Nut - MS35649-244
$0.30

Nuts

2930
MS21044C MS21044C6
Nut - MS21044C6
$1.85

Nuts

2924
AN320 AN320-4
Castellated Nut - AN320-4
$2.30

Nuts

2901
MS21083N MS21083N6
Nut - MS21083N6
$0.95

Nuts

2898
22FH 22FH624
Self Locking Flexloc Nut - 22FH624
$10.05

Nuts

2822
NAS1291 Self-Locking Machine Nuts NAS1291C08M
Self Locking Hex Nut - NAS1291C08M
$1.46

Nuts

2790
ms21086 MS21086L3
Nutplate - MS21086L3
$2.16

Nuts

2766
MS21044C MS21044C5
Nut - MS21044C5
$2.94

Nuts

2727
MS20500 MS20500-428
Nut - MS20500-428
$2.55

Nuts

2721
AN315C AN315C3R
Plain Nut - AN315C3R
$1.34

Nuts

2715
MS21045CadNut MS21045C5
Nut - MS21045C5
QUOTE

Nuts

2700
MS21083C MS21083C4
Nut - MS21083C4
$4.70

Nuts

2674
MS35650 Plain Hexagon Machine Nuts MS35650-3254
Plain Hex Nut - MS35650-3254
$0.93

Nuts

2624
MS35649 Plain Hexagon Machine Nuts MS35649-284
Plain Hex Nut - MS35649-284
$0.44

Nuts

2605
NAS509 NAS509-6
Nut - NAS509-6
$5.08

Nuts

2599
AN310C AN310C5
Castellated Nut - AN310C5
$3.37

Nuts

2536
MS17825 MS17825-6
Castellated Nut - MS17825-6
$7.92

Nuts

2517
AN320 AN320-5
Castellated Nut - AN320-5
$3.34

Nuts

2473
MS21045CadNut MS21045L7
Nut - MS21045L7
$5.10

Nuts

2421
MS21045 MS21045-04
Nut - MS21045-04
$1.23

Nuts

2403
AN310C AN310C3
Castellated Nut - AN310C3
$3.34

Nuts

2357
AN310C AN310C4
Castellated Nut - AN310C4
$3.56

Nuts

2346
MS21045 MS21045-7
Nut - MS21045-7
QUOTE

Nuts

2345
AN320 AN320-8
Castellated Nut - AN320-8
$4.45

Nuts

2202
AN310 AN310-8
Castellated Nut - AN310-8
$5.12

Nuts

2156
MS17825 MS17825-5
Castellated Nut - MS17825-5
$5.35

Nuts

2154
CASTELLATED2 MS14144L6
Castellated Nut - MS14144L6
$9.93

Nuts

2127
MS21045CadNut MS21045L8
Nut - MS21045L8
$5.40

Nuts

2064
MS35649 Plain Hexagon Machine Nuts MS35649-224
Plain Hex Nut - MS35649-224
$0.52

Nuts

2044
MS21043 MS21043-3
Nut - MS21043-3
$1.38

Nuts

2034
MS21045CadNut MS21045C4
Nut - MS21045C4
$3.84

Nuts

1940
MS21045CadNut MS21045L6
Nut - MS21045L6
$6.72

Nuts

1935
AN310 AN310-5
Castellated Nut - AN310-5
$2.75

Nuts

1923
MS21045CadNut MS21045-4S
Nut - MS21045-4S
QUOTE

Nuts

1915
MS21045CadNut MS21045L08
Nut - MS21045L08
$1.92

Nuts

1854
NAS679 Self-Locking Machine Nuts NAS679A04W
Hex Nut - NAS679A04W
QUOTE

Nuts

1830
AN320C AN320C4
Castellated Nut - AN320C4
$2.07

Nuts

1814
AN316 AN316-4L
Jam Nut - AN316-4L
$0.49

Nuts

1803
AN316C AN316C7R
Jam Nut - AN316C7R
$4.30

Nuts

1777
MS21045 MS21045-8
Nut - MS21045-8
$3.34

Nuts

1749
AN363-720 AN363-720
Self-Locking Nut - AN363-720
$4.20

Nuts

1746
MS17826b MS17826-5
Castellated Nut - MS17826-5
$8.30

Nuts

1720
MS21044N MS21044N9
Nut - MS21044N9
$5.40

Nuts

1580
MS21045CadNut MS21045L4
Nut - MS21045L4
$2.12

Nuts

1545
MS35649 Plain Hexagon Machine Nuts MS35649-2312
Plain Hex Nut - MS35649-2312
QUOTE

Nuts

1535
MS21083C MS21083C08
Nut - MS21083C08
$1.14

Nuts

1495
42FLW 42FLW524
Double Hex Nut; 5/16-24 Thread - 42FLW524
$18.95

Nuts

1495
MS20500 MS20500-524
Nut - MS20500-524
QUOTE

Nuts

1429
MS17826b MS17826-8
Castellated Nut - MS17826-8
$9.72

Nuts

1369
MS17825 MS17825-4
Castellated Nut - MS17825-4
$4.45

Nuts

1365
27FT 27FT624
Nut - 27FT624
QUOTE

Nuts

1239
NAS1291 Self-Locking Machine Nuts NAS1291-7
Self Locking Hex Nut - NAS1291-7
$4.05

Nuts

1233
MS21045CadNut MS21045C06
Nut - MS21045C06
QUOTE

Nuts

1169
CASTELLATED2 MS14144L3
Castellated Nut - MS14144L3
$4.40

Nuts

1160
27FT 27FT524
Nut - 27FT524
$1.22

Nuts

1131
MS21044 Self-Locking Machine Nuts MS21044D06
6-32 Thread Size MS21044 Self-Locking Machine Nut
$3.89

Nuts

1118
CASTELLATED MS14145L5
Castellated Nut - MS14145L5
$4.49

Nuts

1115
NAS1291 Self-Locking Machine Nuts NAS1291C04M
Self Locking Hex Nut - NAS1291C04M
$1.34

Nuts

1112
MS21044N MS21044N7
Nut - MS21044N7
$4.51

Nuts

1102
nut-collage1 NAS671C6
Nuts - Part # NAS671C6
QUOTE

1100
CASTELLATED2 MS14144L4
Castellated Nut - MS14144L4
$4.24

Nuts

1060
AN316 AN316-8R
Jam Nut - AN316-8R
$2.98

Nuts

1023
AN316C AN316C4R
Jam Nut - AN316C4R
$1.34

Nuts

1023
NAS1805 NAS1805-3
12 Point Self Locking Nut - NAS1805-3
$2.81

Nuts

981
EB-NUT EB054
Double Hexagon Nut - EB054
QUOTE

Nuts

975
MS17825 MS17825-8
Castellated Nut - MS17825-8
$10.58

Nuts

973
AN310 AN310-7
Castellated Nut - AN310-7
$3.41

Nuts

929
MS21045/AN363 Self-Locking Nuts - 2 MS21045C06E
MS21045C06E
QUOTE

Nuts

902
MS21043 MS21043-6
Nut - MS21043-6
$3.25

Nuts

895
NAS1291 Self-Locking Machine Nuts NAS1291C06M
Self Locking Hex Nut - NAS1291C06M
$1.79

Nuts

869
NAS1805 NAS1805-4
12 Point Self Locking Nut - NAS1805-4
$5.98

Nuts

835
NAS679 Self-Locking Machine Nuts NAS679A6
Hex Nut - NAS679A6
QUOTE

Nuts

819
NAS509 NAS509-5
Nut - NAS509-5
$5.77

Nuts

813
ACN ACN1024
Acorn Nut - ACN1024
$0.07

Nuts

800
MS21045CadNut MS21045C3
Nut - MS21045C3
$2.43

Nuts

792
MS17825 MS17825-10
Castellated Nut - MS17825-10
$9.53

Nuts

773
NAS679 Self-Locking Machine Nuts NAS679A5
Hex Nut - NAS679A5
$4.80

Nuts

770
ACN ACN1032
Acorn Nut - ACN1032
$0.07

Nuts

739
42FLW 42FLW624
Double Hex Nut; 3/8-24 Thread - 42FLW624
QUOTE

Nuts

725
MS21046C MS21046C5
Nut - MS21046C5
QUOTE

Nuts

724
AN315 AN315-7R
Plain Nut - AN315-7R
QUOTE

Nuts

682
AN121502 AN121503
Engine Nut - AN121503
$2.46

Nuts

660
MS17826b MS17826-6
Castellated Nut - MS17826-6
$6.50

Nuts

656
MS17826b MS17826-10
Castellated Nut - MS17826-10
$12.55

Nuts

655
MS21044N MS21044N12
Nut - MS21044N12
$8.42

Nuts

651
MS21045CadNut MS21045C08
Nut - MS21045C08
$2.89

Nuts

650
MS21083N MS21083N7
Nut - MS21083N7
QUOTE

Nuts

636
CASTELLATED MS14145L4
Castellated Nut - MS14145L4
QUOTE

Nuts

605
MS17826b MS17826-7
Castellated Nut - MS17826-7
$5.60

Nuts

595
AN320 AN320-7
Castellated Nut - AN320-7
$4.25

Nuts

594
AN315 AN315-3L
Plain Nut - AN315-3L
$0.70

Nuts

594
nut-collage1 M45913/1-4CG5C
Locknut - M45913/1-4CG5C
QUOTE

Nuts

581
NAS1804 NAS1804-6N
12 Point Self Locking Nut - NAS1804-6N
$5.50

Nuts

568
NAS679 Self-Locking Machine Nuts NAS679C08MW
Hex Nut - NAS679C08MW
QUOTE

Nuts

561
AN320 AN320-6
Castellated Nut - AN320-6
$3.92

Nuts

548
nut-collage1 AS5178-06
Nuts - AS5178-06
QUOTE

546
NAS509 NAS509-4
Nut - NAS509-4
$4.86

Nuts

514
MS21044 Self-Locking Machine Nuts MS21044D08
8-32 Thread Size MS21044 Self-Locking Machine Nut
$2.00

Nuts

508
AN320C AN320C3
Castellated Nut - AN320C3
QUOTE

Nuts

501
MS35650 Plain Hexagon Machine Nuts MS35650-3382
Plain Hex Nut - MS35650-3382
QUOTE

Nuts

496
Unit of Measure
1 2 3 4 5