Model: 140-007-20R20B3

Recessed Washer

Properties:

Hole Diameter

Between 0.312 inches and 0.322 inches

Outside Diameter

Between 0.552 inches and 0.572 inches

Material Thickness

Between 0.120 inches and 0.130 inches

Material

Iron alloy 660

Material Specification

Ams5525 assn standard single material response or ams5731 assn standard single material response or ams5732 assn standard single material response or ams5737 assn standard single material response or ams5881 assn standard single material response

Surface Treatment

Cadmium

Surface Treatment Specification

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

NSN

5310-01-530-3342

Part Number

140-007-20R20B3

Description

Washer,recessed

CAGE

97499

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

Part 140-007-20R20B3 NSN 5310-01-530-3342

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15933

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

194160

UFC:

55210

LTL:

50.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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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