Model: K52207-P08

Concave Washer

Special Features:

Application temp 450 degrees f; heat treat rc 38-44 per ams-h-6875

Properties:

Hole Diameter

Between 0.213 inches and 0.219 inches

Radius

Between 0.169 inches and 0.174 inches

Outside Diameter

Between 0.305 inches and 0.315 inches

Material Thickness

Between 0.055 inches and 0.065 inches

Part Name Assigned By Controlling Agency

Washer, self-aligning, concave

Material

Steel comp 4340 or steel comp 8740

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type ii, class 2 federal specification single treatment response

Style Designator

Concave

NSN

5310-01-613-4265

Part Number

K52207-P08

Description

Washer,concave

CAGE

15653

A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. See also washer (1), convex. Excludes washer (1), recessed and bearing, washer, thrust.

Part K52207-P08 NSN 5310-01-613-4265

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15930

FIIG:

A022B0

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:

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Schedule B and Export

Schedule B: 7318220000
SITC: 69422
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Washers other than lock washers, iron or steel