Model: MB1149-4PC77

Lock Washer

Properties:

Hole Diameter

Between 0.512 inches and 0.531 inches

Outside Diameter

0.900 inches

Material Thickness

0.040 inches

Material

Copper alloy

Surface Treatment

Cadmium

Style Designator

Flat external teeth

Nondefinitive Specification/std Data

B type

NSN

5310-00-261-7304

Part Number

MB1149-4PC77

Description

Washer,lock

CAGE

20263

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 MB1149-4PC77 NSN 5310-00-261-7304

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