Model: BHW136C4

Assembled Washe Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.460 inches

Counterbore Diameter

0.267 inches first end and 0.272 inches first end

Overall Height

0.340 inches

Nut Style

Flat with turned up edge

Nut Counterbore Depth

0.107 inches first end and 0.117 inches first end

Width Across Flats

Between 0.306 inches and 0.316 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 33.0 rockwell c and 44.0 rockwell c

Thread Size

0.250 inches

Material

Iron alloy 660 nut

Material

Stainless steel washer

Material Specification

Ams 5732, a-286 assn standard 1st material response nut or ams 5737, a-286 assn standard 2nd material response nut

Material Specification

Qq-s-763, 300 series federal specification 1st material response washer or qq-s-766, 300 series federal specification 2nd material response washer

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, type ii, class 2 federal specification single treatment response

NSN

5310-01-475-6869

Part Number

BHW136C4

Description

Nut,self-locking,assembled Washe

CAGE

27238

A nut on which has been assembled a nonremovable washer. An integral feature is incorporated for locking on the threads of a mating member.

Part BHW136C4 NSN 5310-01-475-6869

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29736

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