Model: NAS77-20-23

Shouldered Washer

Properties:

Hole Diameter

Between 1.250 inches and 1.252 inches

Shoulder Diameter

Between 1.439 inches and 1.440 inches

Outside Diameter

Between 1.615 inches and 1.625 inches

Shoulder Height

Between 0.163 inches and 0.178 inches

Material Thickness

Between 0.057 inches and 0.062 inches

Surface Finish

100.0 microinches all surfaces

Material

Copper alloy 642

Material Specification

Qq-c-465 federal specification single material response

Style Designator

Shouldered

Specification Data

80205-nas77 professional/industrial association standard

NSN

5310-00-089-8964

Part Number

NAS77-20-23

Description

Washer,shouldered

CAGE

80205

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. 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 NAS77-20-23 NSN 5310-00-089-8964

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15934

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:

0.1000lbs

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:

194120

UFC:

95100

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7415210000
SITC: 69432
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Copper washers including spring washers not threaded