Model: 131W61D53

Extended Washer Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.244 inches

Overall Height

Between 0.115 inches and 0.141 inches

Nut Style

Hexagon

Washer Thickness

0.010 inches

Width Across Flats

Between 0.181 inches and 0.190 inches

Thread Series

Unc

Thready Qty Per Inch (tpi)

Thread Size

0.138 inches

Countersink Angle

120.0 degrees nut

Material

Iron alloy 660

Material Specification

Ams 5735 assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Mil-s-5002 military specification single treatment response

NSN

5310-00-176-6221

Part Number

131W61D53

Description

Nut,self-locking,extended Washer

CAGE

09790

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part 131W61D53 NSN 5310-00-176-6221

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29730

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:

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