Model: WLA1220GRB

Hexagon Self-locking Nut

Special Features:

Head markings indented at 120.0 degrees

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Lubrication

Dry film lubricant

Nut Style

Hexagon

Nut Height

Between 0.427 inches and 0.448 inches

Width Across Flats

Between 0.736 inches and 0.7520 inches

Tempurature Rating

250.0 degrees fahrenheit

Thread Series

Unf

Thready Qty Per Inch (tpi)

Hardness Rating

32.0 rockwell c

Thread Size

0.500 inches

Bearing Surface Type

Chamfered or washer faced

Material

Steel

Surface Treatment

Cadmium or zinc

Surface Treatment Specification

Qq-p-416 federal specification 1st treatment response or qq-z-325 federal specification 2nd treatment response

Nondefinitive Specification/std Data

1 type and b grade

NSN

5310-00-830-7698

Part Number

WLA1220GRB

Description

Nut,self-locking,hexagon

CAGE

82458

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 WLA1220GRB NSN 5310-00-830-7698

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

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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