Request Information

Castellated Nut - Thread: 1/2-20, Self-Locking Nut, Hexagon, Non-Metallic Insert, 250°,

Detail Characteristic
BEARING SURFACE TYPEWASHER FACED
NUT HEIGHT0.548 INCHES MINIMUM AND 0.578 INCHES MAXIMUM
NUT STYLESLOTTED, HEXAGON
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
MATERIALPLASTIC POLYAMIDE LOCKING INSERT
MATERIALSTEEL NUT
NOMINAL THREAD SIZE0.500 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
SURFACE TREATMENTCADMIUM OVERALL EXCEPT INSERT AND CHROMATE OVERALL EXCEPT INSERT
TEMP RATING250.0 DEG FAHRENHEIT NOMINAL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNJF
THREAD QUANTITY PER INCH20
WIDTH ACROSS FLATS0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM

Welcome Back
Winback Offer

Unit of Measure

Discount Table - MS17825-8

Unit
Discount Price / %
25 - 49
$5.06
50 - 99
$4.82
100 - 499
$4.53
500   and up
$4.26

Inventory

 N/A {973}

Estimated Ship Date

 N/A Ships in 1 Business Day

Inventory Note

 N/A Need additional stock? Call (877) 920-1876 or email

Thread Size

 N/A 1/2-20

Industry Standards/Certification

 N/A MIL-S-8879 MS17825

Minimum Dimension A

 N/A 0.548 in

Type

 N/A Self-Locking Castellated Nut

Weight

 N/A 0.032 lb

Thread MIL-S-8879

 N/A 0.5000-20

Minimum Ultimate Tensile Strength

 N/A 16600 lb

Minimum Test Wrenching Torque

 N/A 900 in·lb

Maximum Dimension A

 N/A 0.578 in

Minimum Dimension B

 N/A 0.741 in

Minimum Dimension C

 N/A 0.837 in

Maximum Dimension B

 N/A 0.752 in

NSN

 N/A 5310-00-871-8758

NIIN

 N/A 00-871-8758

Part # Unpunctuated

 N/A MS178258

Minimum Order Note

 N/A Minimum order is 5. Must order in increments of 5.

Note

 N/A Our inventory is extensive. The majority of the items listed in our catalog are stocked and available for immediate shipment.

California Residents

 N/A Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.