Model: 21AX-338

Single Ball Sea Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque with nonmetallic insert

Nut Style

Single ball seat, hexagon

Ball Seat Radius

0.280 inches

Nut Height

0.926 inches

Width Across Flats

1.010 inches

Thread Series

Unf

Thready Qty Per Inch (tpi)

Thread Size

0.625 inches

Part Name Assigned By Controlling Agency

Nut, hex lock

Material

Plastic nylon locking insert

Material

Steel nut

NSN

5310-01-551-9498

Part Number

21AX-338

Description

Nut,self-locking,single Ball Sea

CAGE

89619

A nut having one convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, cone seat, hexagon.

Part 21AX-338 NSN 5310-01-551-9498

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29732

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