Model: MS51943-4

Hexagon Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design or prevailing torque with nonmetallic insert

Nut Style

Hexagon

Nut Height

0.359 inches

Width Across Flats

Between 0.489 inches and 0.502 inches

Tempurature Rating

250.0 degrees fahrenheit

Thread Series

Unf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 26.0 rockwell c and 35.0 rockwell c

Thread Size

0.312 inches

Bearing Surface Type

Chamfered or washer faced

Bearing Surface Finish

110.0 microinches

Material

Plastic polyamide locking insert

Material

Steel nut

Surface Treatment

Phosphate except insert

Surface Treatment Specification

Mil-p-16232 type 2 cl 2 military specification single treatment response except insert

NSN

5310-00-935-3750

Part Number

MS51943-4

Description

Nut,self-locking,hexagon

CAGE

96906

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 MS51943-4 NSN 5310-00-935-3750

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:

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