Model: NAS1640-1216

Lock Washer

Properties:

Hole Diameter

Between 0.763 inches and 0.791 inches

Outside Diameter

1.279 inches

Material Thickness

0.188 mils and 0.198 centimeters

End Application

Stryker

Hardness Rating

Between 35.0 rockwell c and 45.0 rockwell c

Part Name Assigned By Controlling Agency

Washer, lock, spring, non-magnetic

Material

Stainless steel

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Style Designator

Split helical-right hand

NSN

5310-01-591-9287

Part Number

NAS1640-1216

Description

Washer,lock

CAGE

80205

A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces

Part NAS1640-1216 NSN 5310-01-591-9287

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

14218

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:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 7318210000
SITC: 69422
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Spring washers and other lock washers, iron or steel