Model: FN22-428P25

Extended Washer Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.438 inches

Overall Height

0.230 inches

Nut Style

Double hexagon

Washer Thickness

0.024 inches

Width Across Flats

Between 0.305 inches and 0.312 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 40.0 rockwell c and 47.0 rockwell c

Thread Size

0.250 inches

Material

Steel comp 8740 or steel comp h11

Material Specification

Ams6322 assn standard single material response or ams6485 assn standard single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Mil-c-8837 military specification single treatment response

NSN

5310-00-763-0229

Part Number

FN22-428P25

Description

Nut,self-locking,extended Washer

CAGE

56878

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 FN22-428P25 NSN 5310-00-763-0229

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:

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