Model: NAS77A16-020

Shouldered Washer

Special Features:

Chamfered both sides of boss 0.025 in. Min and 0.035 in. Max by 45 degrees

Properties:

Hole Diameter

Between 1.2500 inches and 1.2515 inches

Shoulder Diameter

Between 1.4389 inches and 1.4399 inches

Outside Diameter

Between 1.615 inches and 1.635 inches

Shoulder Height

Between 0.015 inches and 0.025 inches

Material Thickness

Between 0.057 inches and 0.062 inches

Surface Finish

100.0 microinches all surfaces

Material

Copper alloy 642 or copper alloy 630

Material Specification

Qq-c-465 federal specification 1st material response or qq-c-465 federal specification 2nd material response or ams 4640 assn standard 2nd material response

Style Designator

Shouldered

Specification Data

80205-nas77 professional/industrial association standard

NSN

5310-01-259-6364

Part Number

NAS77A16-020

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 NAS77A16-020 NSN 5310-01-259-6364

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:

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