Model: 140-007-24R21B4

Recessed Washer

Properties:

Hole Diameter
Between 0.375 inches and 0.385 inches
Outside Diameter
Between 0.646 inches and 0.666 inches
Material Thickness
Between 0.120 inches and 0.130 inches
End Application
Horn instl
Top Recess Diameter
Between 0.020 inches and 0.030 inches
Bottom Recess Angle
45.0 degrees
Top Recess Angle
45.0 degrees
Bottom Recess Diameter
Between 0.020 inches and 0.030 inches
Material
Stainless steel
Material Specification
Ams5525 assn standard single material response or ams5731 assn standard single material response or ams5732 assn standard single material response or ams5737 assn standard single material response or ams5853 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Ams-qq-p-416, type ii, class 2 assn standard single treatment response
Style Designator
Recessed both sides
NSN
5310-01-583-4951
Part Number
140-007-24R21B4
Description
Washer,recessed
CAGE
97499

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

Part 140-007-24R21B4 NSN 5310-01-583-4951

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15933
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: 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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