Model: 74A551866-2001

Concave Washer

Properties:

Hole Diameter
Between 2.115 inches and 2.135 inches
Outside Diameter
Between 2.600 inches and 2.660 inches
Material Thickness
Between 0.115 inches and 0.135 inches
Material
Aluminum alloy 6061
Material Specification
Qq-a-250/11 t6 federal specification single material response
Style Designator
Concave
Specification Data
76301-74a551866-2001 professional/industrial association specification
NSN
5310-01-321-4332
Part Number
74A551866-2001
Description
Washer,concave
CAGE

A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. See also washer (1), convex. Excludes washer (1), recessed and bearing, washer, thrust.

Part 74A551866-2001 NSN 5310-01-321-4332

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15930
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

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Schedule B and Export
  • Schedule B: 7616108000
  • SITC: 69440
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Cotters, cotter-pins, washers and similar articles, of aluminum

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