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Recessed Washer NSN 5310-00-497-7329

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 5310-00-497-7329 NSN: 5310-00-497-7329

Features and Characteristics

Hole Diameter
Between 1.255 inches and 1.265 inches
Outside Diameter
Between 1.960 inches and 2.000 inches
Recess Diameter
Between 1.615 inches and 1.625 inches
Material Thickness
Between 0.258 inches and 0.268 inches
Recess Angle
90.0 degrees
Material
Aluminum alloy
Material Specification
Ams 4640 assn standard single material response
Style Designator
Recessed
Test Data Document
81349-mil-i-6866 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
FSC
5310 Nuts And Washers
NIIN
004977329
NSN
5310004977329

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2578624-001A
Cage Code:
06848
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 5310-00-497-7329
What are the manufacturers of nsn 5310004977329?
Does this nsn 5310004977329 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310004977329
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 5310004977329 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310004977329 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310004977329?
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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