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Recessed Washer NSN 5310-01-121-8961

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 5310-01-121-8961 NSN: 5310-01-121-8961

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Features and Characteristics

Hole Diameter
Between 0.313 inches and 0.317 inches
Outside Diameter
Between 0.600 inches and 0.610 inches
Recess Diameter
0.350 inches
Material Thickness
Between 0.060 inches and 0.065 inches
Material
Steel comp 630
Material Specification
Ams 5643 cond a assn standard single material response
Style Designator
15 recessed
FSC
5310 Nuts And Washers
NIIN
011218961
NSN
5310011218961

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3253-032
Cage Code:
66503
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 5310-01-121-8961
What are the manufacturers of nsn 5310011218961?
Does this nsn 5310011218961 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011218961
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 5310011218961 contain any precious metals?
No precious metal content.
Does nsn 5310011218961 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011218961?
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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