Model: NK924-4

Hexagon Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque with metallic insert

Nut Style

Hexagon

Nut Height

0.250 inches

Width Across Flats

Between 0.684 inches and 0.691 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Thread Size

0.438 inches

Bearing Surface Type

Chamfered

Material

Plastic polyamide locking insert

Material

Steel comp 1137 nut or steel comp 1141 nut or steel comp 4130 nut or steel comp 4140 nut

Material Specification

Astm a108 assn standard 1st material response nut or astm a108 assn standard 2nd material response nut or mil-s-6758 military specification 3rd material response nut or mil-s-5626 military specification 4th material response nut

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

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

NSN

5310-01-168-1778

Part Number

NK924-4

Description

Nut,self-locking,hexagon

CAGE

26233

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 NK924-4 NSN 5310-01-168-1778

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