Model: 310-0078-000

Lock Washer

Special Features:

Dyed deep yellow

Properties:

Hole Diameter

Between 0.141 inches and 0.151 inches

Outside Diameter

0.239 inches

Material Thickness

Between 0.025 inches and 0.031 inches

Material

Copper alloy

Surface Treatment

Cadmium and chromate

Style Designator

Split helical-right hand

Departure From Cited Designator

As modified by material spec

NSN

5310-00-184-8978

Part Number

310-0078-000

Description

Washer,lock

CAGE

13499

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 310-0078-000 NSN 5310-00-184-8978

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:

194120

UFC:

95100

LTL:

RATING VARIABLE

LCL:

70.0

WCC:

713

TCC:

SHC:

ACC:

Trailers/Vehicles

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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