Model: 6556923

Extended Washer Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

Between 0.715 inches and 0.740 inches

Counterbore Diameter

0.385 inches washer and 0.400 inches washer

Overall Height

Between 0.335 inches and 0.355 inches

Nut Style

Hexagon

Washer Thickness

Between 0.060 inches and 0.083 inches

Nut Counterbore Depth

0.105 inches washer and 0.125 inches washer

Width Across Flats

Between 0.5510 inches and 0.5625 inches

Thread Series

Unf

Thready Qty Per Inch (tpi)

Thread Size

0.375 inches

Material

Steel comp 1110 or steel comp 1010 or steel comp 1020

Material Specification

Sae assn standard all material responses

Surface Treatment

Zinc

Surface Treatment Specification

Gm 4342-m, fscm 11862 mfr ref single treatment response

NSN

5310-01-165-3346

Part Number

6556923

Description

Nut,self-locking,extended Washer

CAGE

11862

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 6556923 NSN 5310-01-165-3346

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:

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