Model: 127B-A4M12

Lock Washer

Properties:

Hole Diameter

12.2 millimeters

Outside Diameter

21.1 millimeters

Material Thickness

2.5 millimeters

End Application

738629 (53711) engine assembly

Part Name Assigned By Controlling Agency

(inavy)washer

Material

Steel comp 316

Style Designator

Split helical-right hand

NSN

5310-01-560-0269

Part Number

127B-A4M12

Description

Washer,lock

CAGE

15526

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 127B-A4M12 NSN 5310-01-560-0269

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:

Construction Materials

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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