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Recessed Washer NSN 5310-01-172-3309

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 5310-01-172-3309 NSN: 5310-01-172-3309

Features and Characteristics

Hole Diameter
3.440 inches
Outside Diameter
6.880 inches
Recess Diameter
3.500 inches
Material Thickness
0.180 inches
Recess Angle
90.0 degrees
Surface Finish
63.0 microinches top
Material
Plastic acetal
Material Specification
Af de-588, fscm 18873 mfr ref single material response
Style Designator
15 recessed
FSC
5310 Nuts And Washers
NIIN
011723309
NSN
5310011723309

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
4684958 ITEM 8
Cage Code:
80064
Status:
A
MSDS:
Part Number:
87841-0205 ITEM 8
Cage Code:
96169
Status:
A
MSDS:
Part Number:
4684969-8
Cage Code:
28548
Status:
A
MSDS:
Part Number:
708-4684958 ITEM 8
Cage Code:
80064
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 3926904500
  • NAICS: 339991
  • SITC: 89399
  • Description: Gaskets,washers & other seals
  • End Use (Code 12770):
    Other industrial supplies

Q & A

Frequently asked questions for NSN 5310-01-172-3309
What are the manufacturers of nsn 5310011723309?
Does this nsn 5310011723309 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011723309
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 5310011723309 contain any precious metals?
No precious metal content.
Does nsn 5310011723309 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011723309?
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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