Model: 2853631-1

Shouldered And Recessed Washer

Properties:

Hole Diameter

Between 0.261 inches and 0.266 inches

Shoulder Diameter

0.563 inches

Outside Diameter

Between 0.621 inches and 0.624 inches

Recess Diameter

0.500 inches

Shoulder Height

0.015 inches

Recess Depth

0.049 inches

Material Thickness

Between 0.063 inches and 0.065 inches

Material

Steel comp 303

Material Specification

Astm a582, cond a assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35, ty2 federal specification single treatment response

Style Designator

Shouldered and recessed

NSN

5310-01-291-6617

Part Number

2853631-1

Description

Washer,shouldered And Recessed

CAGE

52088

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 2853631-1 NSN 5310-01-291-6617

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:

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