Model: 4138-0020

Extended Washer Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.167 inches

Lubrication

Soluble lubricant

Overall Height

Between 0.080 inches and 0.100 inches

Nut Style

Hexagon

Washer Thickness

0.010 inches

End Application

W/s: support equipment, b-1 aircraft; test set, arm-155/156; test consoles, mini-sace; trainer, b-1b aircraft; engine, aircraft tf33-pw-102 (c-135e, ec-135h/k/p); missile, advance medium range air-to-air (amraam)/aim120a; fire control system, missile mk 74 (fcs); aircraft, (ac-130h, mc-130h, ec-130e, hc-130s; guided missile launching system, mk 26 (gmls); intermediate forward test equipment (ifte) system

Width Across Flats

Between 0.122 inches and 0.127 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjc

Thready Qty Per Inch (tpi)

Hardness Rating

49.0 rockwell c

Thread Size

0.086 inches

Material

Steel

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416 federal specification single treatment response

NSN

5310-00-058-1823

Part Number

4138-0020

Description

Nut,self-locking,extended Washer

CAGE

13467

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part 4138-0020 NSN 5310-00-058-1823

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29730

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.1000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

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