Model: BMN4122A-8

Hexagon Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Lubrication

Dry film lubricant

Nut Style

Hexagon

Nut Height

0.328 inches

Width Across Flats

Between 0.741 inches and 0.752 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 34.0 rockwell c and 41.0 rockwell c

Thread Size

0.500 inches

Countersink Angle

120.0 degrees nut

Bearing Surface Type

Chamfered or washer faced

Material

Steel comp 8740 or steel comp 4130 or steel comp e4340

Material Specification

Mil-s-6049 military specification 1st material response or ams 6322 assn standard 1st material response or ams 6350 federal specification 2nd material response or ams 6378 federal specification 2nd material response or mil-s-18729 military specification 2nd material response or mil-s-5000 military specification 3rd material response

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, cl 3 federal specification single treatment response

NSN

5310-00-119-7708

Part Number

BMN4122A-8

Description

Nut,self-locking,hexagon

CAGE

17446

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 BMN4122A-8 NSN 5310-00-119-7708

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