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Recessed Washer NSN 5310-00-173-8991

Item Description

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.

NSN 5310-00-173-8991 NSN: 5310-00-173-8991

Features and Characteristics

Hole Diameter
0.300 inches
Outside Diameter
Between 0.665 inches and 0.675 inches
Overall Height
0.130 inches
Recess Depth
0.080 inches
Material Thickness
Between 0.040 inches and 0.050 inches
Material
Aluminum alloy 2024
Material Specification
Qq-a-225/6 federal specification single material response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
001738991
NSN
5310001738991

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
4B69011-103A
Cage Code:
98897
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7616108000
  • NAICS: 332722
  • SITC: 69440
  • Description: Cotters, cotter-pins, washers and similar articles, of aluminum
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-173-8991
What are the manufacturers of nsn 5310001738991?
Does this nsn 5310001738991 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310001738991
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.
Does nsn 5310001738991 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310001738991 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310001738991?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15933
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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  •   Quality Inspected Parts
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