Model: H52874-7

Hexagon Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque with nonmetallic insert

Nut Style

Hexagon

Nut Height

Between 0.271 inches and 0.291 inches

Width Across Flats

Between 0.615 inches and 0.627 inches

Tempurature Rating

250.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 34.0 rockwell c and 38.0 rockwell c

Thread Size

0.438 inches

Bearing Surface Type

Chamfered

Material

Steel comp 4130 except insert

Material Specification

Mil-s-6758 military specification single material response except insert

Surface Treatment

Cadmium except insert and chromate except insert

Surface Treatment Specification

Qq-p-416, type 2, cl 2 federal specification single treatment response except insert

NSN

5310-01-439-3777

Part Number

H52874-7

Description

Nut,self-locking,hexagon

CAGE

15653

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 H52874-7 NSN 5310-01-439-3777

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