Cotter Pins, or a split pin, is a metal fastener with two lines that are bent during installation to hold a metal rod in place. Once removed they should be replaced with a new cotter pin due to the fatigue from bending the metal during installation and removal. Common materials for these fasteners are steel, brass, bronze, aluminium, and stainless steel. Monroe Aerospace is a stocking distributor of Aerospace and Mil-Spec hardware. We have an extensive inventory of cotter pins. 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.
cotter-pins-collage
Unit of Measure
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Image NAS1465-03
Cotter Pins - NAS1465-03
QUOTE

292
MS24665/AN380/AN381 Cotter Pins (Corrosion Resistanct Steel) MS24665-174
Cotter Pin - MS24665-174
$0.20

Cotter Pins

250
MS24665/AN380/AN381 Cotter Pins (Corrosion Resistanct Steel) MS24665-28
Cotter Pin - MS24665-28
QUOTE

Cotter Pins

250
Image MS9245-68
MS9245-68
$0.56

Cotter Pins

250
Image MS20392-7C111
Cotter Pins - MS20392-7C111
QUOTE

248
MS24665/AN380/AN381 Cotter Pins (Corrosion Resistanct Steel) MS24665-312
Cotter Pin - MS24665-312
QUOTE

Cotter Pins

244
Image NAS1465-02
Cotter Pins - NAS1465-02
QUOTE

205
MS24665/AN380/AN381 Cotter Pins (Corrosion Resistanct Steel) MS24665-446
Cotter Pin - MS24665-446
QUOTE

Cotter Pins

200
Image MS24665-419
MS24665-419
QUOTE

Cotter Pins

200
Image MS16555-617
Cotter Pins - Part # MS16555-617
QUOTE

190
MS24665/AN380/AN381 Cotter Pins (Corrosion Resistanct Steel) MS24665-170
Cotter Pin - MS24665-170
QUOTE

Cotter Pins

174
MS9245 MS9245-21
Cotter Pin - MS9245-21
QUOTE

Cotter Pins

165
MS24665/AN380/AN381 Cotter Pins MS24665-425
Cotter Pin - MS24665-425
QUOTE

Cotter Pins

140
MS9245 MS9245-47
Cotter Pin - MS9245-47
QUOTE

Cotter Pins

125
Image SP90E10
Cotter Key - SP90E10
$0.43

Cotter Pins

123
MS24665/AN380/AN381 Cotter Pins (Corrosion Resistanct Steel) MS24665-449
Cotter Pin - MS24665-449
QUOTE

Cotter Pins

109
MS24665/AN380/AN381 Cotter Pins (Corrosion Resistanct Steel) MS24665-418
Cotter Pin - MS24665-418
QUOTE

Cotter Pins

100
MS24665/AN380/AN381 Cotter Pins MS24665-431
Cotter Pin - MS24665-431
QUOTE

Cotter Pins

100
Image MS16555-626
Cotter Pins - MS16555-626
$0.30

100
MS24665/AN380/AN381 Cotter Pins (Corrosion Resistanct Steel) MS24665-90
Cotter Pin - MS24665-90
$0.15

Cotter Pins

98
MS9245 MS9245-22
Cotter Pin - MS9245-22
QUOTE

Cotter Pins

97
MS24665/AN380/AN381 Cotter Pins (Corrosion Resistanct Steel) MS24665-82
Cotter Pin - MS24665-82
QUOTE

Cotter Pins

90
MS24665/AN380/AN381 Cotter Pins (Corrosion Resistanct Steel) MS24665-443
Cotter Pin - MS24665-443
QUOTE

Cotter Pins

85
Image SP90C6
Cotter Key - SP90C6
QUOTE

Cotter Pins

80
Unit of Measure
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