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Recessed Washer NSN 5310-01-053-2898

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 5310-01-053-2898 NSN: 5310-01-053-2898

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Features and Characteristics

Hole Diameter
Between 0.529 inches and 0.536 inches
Outside Diameter
Between 0.811 inches and 0.813 inches
Material Thickness
0.090 inches
End Application
An/alq-131, block 1
Hardness Rating
Between 38.0 rockwell c and 43.0 rockwell c
Material
Steel comp 4140h
Material Specification
Qq-s-624 federal specification single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, cl1, type ii federal specification 1st treatment response and qq-p-416, cl1, type ii federal specification 2nd treatment response
Style Designator
15 recessed
FSC
5310 Nuts And Washers
NIIN
010532898
NSN
5310010532898

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
430R308H01
Cage Code:
97942
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318220000
  • NAICS: 332722
  • SITC: 69422
  • Description: Washers other than lock washers, iron or steel
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-01-053-2898
What are the manufacturers of nsn 5310010532898?
Does this nsn 5310010532898 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310010532898
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 5310010532898 contain any precious metals?
No precious metal content.
Does nsn 5310010532898 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310010532898?
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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