Model: 12387381-34

Lock Washer

Special Features:

Washer shall be in accordance with requirements of ms35335, carbon steel, except for protective finish specified hereon

Properties:

Hole Diameter
Between 0.320 inches and 0.332 inches
Outside Diameter
Between 0.588 inches and 0.610 inches
Material Thickness
Between 0.028 inches and 0.034 inches
End Application
5420-00-889-2020
Hardness Rating
Between 40.0 rockwell c and 50.0 rockwell c
Material
Steel
Surface Treatment
Chromate zinc
Surface Treatment Specification
Mil-std-171e military specification single treatment response body
Style Designator
Flat external teeth
NSN
5310-01-540-1559
Part Number
12387381-34
Description
Washer,lock
CAGE
19207

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 12387381-34 NSN 5310-01-540-1559

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
14218
FIIG:
A022B0
Concept No.:
1
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194160
UFC:
55210
LTL:
50.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
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

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