Model: SM-B-630954

Key Washer

Special Features:

One raised tab 0.058 in. Min, 0.062 in. Max high by 0.076 in. Min, 0.080 in. Max diameter countersunk on opposite side

Properties:

Hole Diameter
Between 0.252 inches and 0.253 inches
Outside Diameter
Between 0.747 inches and 0.753 inches
External Straight Key Width
0.156 inches
Material Thickness
0.093 inches
Hardness Rating
Between 53.0 rockwell c and 57.0 rockwell c
Heat Treatment
Annealed
Material
Steel comp 440c
Material Specification
Qq-s-763 federal specification single material response
Distance From Centerline To End Of Key
0.500 inches
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response
Style Designator
Key
NSN
5310-01-031-4856
Part Number
SM-B-630954
Description
Washer,key
CAGE
80063

A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes thrust type washer.

Part SM-B-630954 NSN 5310-01-031-4856

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01869
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:
U
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: 7318220000
  • SITC: 69422
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Washers other than lock washers, iron or steel

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