Model: 74A10551

Shouldered And Recessed Washer

Properties:

Hole Diameter
Between 2.9700 inches and 2.9750 inches
Shoulder Diameter
Between 3.1900 inches and 3.1915 inches
Outside Diameter
Between 3.504 inches and 3.506 inches
Recess Diameter
Between 3.130 inches and 3.135 inches
Shoulder Height
0.470 inches
Material Thickness
Between 0.089 inches and 0.090 inches
Recess Angle
Between 88.0 degrees and 92.0 degrees
Surface Finish
63.0 microinches top
Material
Copper alloy 172
Material Specification
Qq-c-530, temper at federal specification single material response
Style Designator
Shouldered and recessed
NSN
5310-01-121-8528
Part Number
74A10551
Description
Washer,shouldered And Recessed
CAGE
13002

A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. Excludes insulator, washer and thrust type washers.

Part 74A10551 NSN 5310-01-121-8528

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15935
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

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:
B

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194120
UFC:
95100
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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