Model: 21AX638

Hexagon Self-locking Nut

Special Features:

Material: steel with nylon insert

Properties:

Thread Class

Thread Direction

Right-hand

Nut Height

0.909 inches

Width Across Flats

1.014 inches

Thread Series

Unf

Thready Qty Per Inch (tpi)

Thread Size

0.500 inches

Part Name Assigned By Controlling Agency

Nut, hex lock

Material

Steel

NSN

5310-01-552-7972

Part Number

21AX638

Description

Nut,self-locking,hexagon

CAGE

89619

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.

Part 21AX638 NSN 5310-01-552-7972

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05277

FIIG:

A021A0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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Schedule B and Export

Schedule B: 7318160000
SITC: 69421
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Nuts of iron or steel