Model: K39253-4-5

Round Self-locking Nut

Special Features:

0.072 in. Min, 0.084 in. Max shoulder opposite locking portion

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Counterbore Diameter

0.264 inches nut and 0.269 inches nut

Nut Style

Round

Nut Diameter

0.620 inches

Nut Thickness

Between 0.468 inches and 0.495 inches

Nut Counterbore Depth

0.072 inches nut and 0.084 inches nut

Width Across Flats

Between 0.445 inches and 0.455 inches

Tempurature Rating

1200.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 28.0 rockwell c and 39.0 rockwell c

Thread Size

0.250 inches

Material

Iron alloy 660

Material Specification

Ams 5735 assn standard single material response or ams 5736 assn standard single material response or ams 5737 assn standard single material response

Precious Material And Location

External surfaces silver

Precious Material

Silver

Surface Treatment

Silver

Surface Treatment Specification

Ams 2411 assn standard single treatment response

NSN

5310-00-832-8289

Part Number

K39253-4-5

Description

Nut,self-locking,round

CAGE

15653

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protusions, slots or splines in or on the periphery or in the face opposite the bearing surface. An integral feature is incorporated for locking on the threads of a mating member. Do not use if a more specific item name applies. Excludes collar, pin-rivet, threaded; insert, screw thread; nut (1), sleeve; nut(1), plain, cap; and turnbuckle body.

Part K39253-4-5 NSN 5310-00-832-8289

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15895

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:

013540

UFC:

05680

LTL:

70.0

LCL:

WCC:

713

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