Model: H39938-5

Extended Washer Self-locking Nut

Special Features:

Removed two points on wrenching configuration 180 degrees apart, 10-point nut; finish is esnalube 382

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.475 inches

Overall Height

Between 0.460 inches and 0.475 inches

Nut Style

Double hexagon

Washer Thickness

Between 0.050 inches and 0.070 inches

End Application

F118 engine qualified

Width Across Flats

0.375 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

48.0 rockwell c

Thread Size

0.3125 inches

Material

Iron alloy 660

Material Specification

Ams 5735, a-286 assn standard 1st material response or ams 5737, a-286 assn standard 2nd material response

NSN

5310-01-182-6271

Part Number

H39938-5

Description

Nut,self-locking,extended Washer

CAGE

15653

A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part H39938-5 NSN 5310-01-182-6271

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29729

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:

194160

UFC:

55210

LTL:

50.0

LCL:

50.0

WCC:

573

TCC:

SHC:

ACC:

Equipment for Aircraft

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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