Model: BN 637

Hexagon Self-locking Nut

Properties:

Thread Direction

Right-hand

Locking Feature

Prevailing torque with nonmetallic insert

Nut Style

Hexagon

Nut Height

5.0 millimeters

End Application

2355-01-481-8576

Width Across Flats

8.7 millimeters

Thread Series

Thread Size

5.0 millimeters

Thread Pitch In Millimeters

0.8

Bearing Surface Type

Flat

Part Name Assigned By Controlling Agency

Hex lock nut

Material

Plastic polyamide locking insert

Material

Steel

NSN

5310-01-631-9510

Part Number

BN 637

Description

Nut,self-locking,hexagon

CAGE

0RW44

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 BN 637 NSN 5310-01-631-9510

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