National Item Identification Number

01-161-0088

National Stock Number

Item Name

NUT,SELF-LOCKING,CASTELLATED,HEXAGON

Federal Supply Class

5310

Description

A nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. An integral feature is incorporated for locking on the threads of a mating member. The slots when used in conjunction with a solid or split (cotter) pin, act as an extra ""fail safe"" feature in critical applications. Excludes NUT (1), SELF-LOCKING, SLOTTED, HEXAGON.

Commercial and Government Entity Code (Supplier Data)

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15653

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ALCOA GLOBAL FASTENERS DE
DBA ALCOA FASTENING SYSTEMS DIV
800 S COLLEGE BLVD
FULLERTON
CA
92831
805-991-1270

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19207

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Reference Numbers (Part Numbers)

H5-7-420
SM1813-040
12302427

Required Categories

THREAD SERIES
NOMINAL THREAD SIZE
THREAD QUANTITY PER INCH
THREAD CLASS
THRE

Required Description

UNJC
0.250 INCHES
20
3B
RIGHT-HAND
STEEL CORROSION RESISTING OVERALL
NOT R