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Recessed Washer NSN 5310-00-298-8796

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 5310-00-298-8796 NSN: 5310-00-298-8796

Features and Characteristics

Hole Diameter
Between 0.375 inches and 0.385 inches
Outside Diameter
Between 0.795 inches and 0.805 inches
Overall Height
Between 0.135 inches and 0.145 inches
Recess Depth
Between 0.055 inches and 0.065 inches
Material Thickness
Between 0.075 inches and 0.085 inches
Color
Black
Material
Copper alloy 464
Material Specification
Qq-b-637 federal specification single material response
Surface Treatment
Oxide film
Surface Treatment Specification
Mil-f-495 military specification single treatment response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
002988796
NSN
5310002988796

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1041497
Cage Code:
04773
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7415210000
  • NAICS: 332722
  • SITC: 69432
  • Description: Copper washers including spring washers not threaded
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-298-8796
What are the manufacturers of nsn 5310002988796?
Does this nsn 5310002988796 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310002988796
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 5310002988796 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310002988796 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310002988796?
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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