Model: 560021

Shouldered And Recessed Washer

Properties:

Hole Diameter

Between 0.384 inches and 0.390 inches

Shoulder Diameter

0.670 inches

Outside Diameter

Between 1.765 inches and 1.775 inches

Recess Diameter

1.650 inches

Shoulder Height

0.090 inches

Recess Depth

0.080 inches

Material Thickness

0.150 inches

Hardness Rating

Between 46.0 rockwell c and 52.0 rockwell c

Material

Steel

Material Specification

Ams6448 assn standard single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Ams2400 assn standard single treatment response

Style Designator

Shouldered and recessed

NSN

5310-00-331-9556

Part Number

560021

Description

Washer,shouldered And Recessed

CAGE

30715

A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. Excludes insulator, washer and thrust type washers.

Part 560021 NSN 5310-00-331-9556

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15935

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:

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:

194160

UFC:

55210

LTL:

50.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7616108000
SITC: 69440
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Cotters, cotter-pins, washers and similar articles, of aluminum