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Recessed Washer NSN 5310-00-803-1490

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 5310-00-803-1490 NSN: 5310-00-803-1490

Features and Characteristics

Hole Diameter
Between 0.245 inches and 0.255 inches
Outside Diameter
Between 0.370 inches and 0.380 inches
Recess Diameter
0.308 inches
Material Thickness
Between 0.058 inches and 0.088 inches
Hardness Rating
Between 34.0 rockwell c and 41.0 rockwell c
Recess Angle
90.0 degrees
Material
Steel
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 1, cl 3 federal specification single treatment response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
008031490
NSN
5310008031490

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
00648-1
Cage Code:
14153
Status:
A
MSDS:
Part Number:
2935-0
Cage Code:
019L2
Status:
A
MSDS:
Part Number:
F2935-0
Cage Code:
019L2
Status:
A
MSDS:
Part Number:
67992W1032
Cage Code:
56878
Status:
A
MSDS:
Part Number:
GB500A3
Cage Code:
26512
Status:
A
MSDS:
Part Number:
74049-3
Cage Code:
56878
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 5310-00-803-1490
What are the manufacturers of nsn 5310008031490?
Does this nsn 5310008031490 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310008031490
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 5310008031490 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310008031490 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310008031490?
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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