Model: 163B5891

Shouldered And Recessed Washer

Properties:

Hole Diameter

Between 0.591 inches and 0.597 inches

Shoulder Diameter

Between 0.710 inches and 0.750 inches

Outside Diameter

Between 1.050 inches and 1.070 inches

Shoulder Height

Between 0.025 inches and 0.055 inches

Material Thickness

Between 0.070 inches and 0.110 inches

Recess Angle

90.0 degrees

Material

Steel

Material Specification

Qq-s-763, class 304 federal specification 1st material response or qq-s-763, class 304l federal specification 2nd material response or mil-t-8506 military specification 3rd material response

Surface Treatment

Passivate

Style Designator

Shouldered and recessed

NSN

5310-00-531-3439

Part Number

163B5891

Description

Washer,shouldered And Recessed

CAGE

05606

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 163B5891 NSN 5310-00-531-3439

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