Model: 1881-178A

Key Washer

Special Features:

Heat treat 90, 000 psi-uts per mil-h-6875

Properties:

Hole Diameter
1.020 inches
Outside Diameter
1.560 inches
Internal Straight Key Width
Between 0.179 inches and 0.184 inches
Distance From Centerline To Top Of Internal Key
0.395 inches
Internal Key Quantity
1
Material Thickness
Between 0.120 inches and 0.130 inches
Surface Finish
125.0 microinches all surfaces
Material
Steel comp 4130
Material Specification
Mil-s-6758 military specification single material response
Surface Treatment
Primer and enamel and cadmium
Surface Treatment Specification
Mil-p-23377 military specification 1st treatment response and fed-std-595 color 17875 federal standard 2nd treatment response and qq-p-416 type 2 cl 1 federal specification 3rd treatment response
Style Designator
Key
NSN
5310-01-175-6078
Part Number
1881-178A
Description
Washer,key
CAGE
13002

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 1881-178A NSN 5310-01-175-6078

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:
A
ESD:
ESD:
MMAC:
LE
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:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
097510
UFC:
55220
LTL:
65.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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