Model: 312-031-625

Spring Tension Washer

Special Features:

The calculated load at flat (pmax) is 233.0 lbs. The bolt size is 5/16 or .3125 inches

Properties:

Hole Diameter
0.312 inches
Outside Diameter
0.625 inches
Overall Height
0.048 inches
Material Thickness
0.031 inches
Part Name Assigned By Controlling Agency
Belleville disc spring
Material
Stainless steel
Style Designator
Spring tension
NSN
5310-01-611-7823
Part Number
312-031-625
Description
Washer,spring Tension
CAGE
1A699

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

Part 312-031-625 NSN 5310-01-611-7823

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15938
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:
ESD:
MMAC:
CRITL:
X

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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