Model: 537B21-41

Spring Tension Washer

Properties:

Hole Diameter

Between 0.197 inches and 0.201 inches

Outside Diameter

Between 0.360 inches and 0.390 inches

Material Thickness

Between 0.008 inches and 0.012 inches

Material

Copper alloy

Surface Treatment

Nickel

Surface Treatment Specification

Qq-n-290, cl 1, type 5 federal specification single treatment response

NSN

5310-00-052-0326

Part Number

537B21-41

Description

Washer,spring Tension

CAGE

94033

A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.

Part 537B21-41 NSN 5310-00-052-0326

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15938

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