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Concave Washer NSN 5310-00-237-7705

Item Description

A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. See also washer (1), convex. Excludes washer (1), recessed and bearing, washer, thrust.

NSN 5310-00-237-7705 NSN: 5310-00-237-7705

Features and Characteristics

Hole Diameter
0.685 inches
Radius
0.375 inches
Outside Diameter
Between 0.935 inches and 0.945 inches
Recess Depth
0.156 inches
Material Thickness
0.252 inches
Material
Steel comp 630 or steel comp 631 or steel comp 632
Material Specification
Ams 5643 assn standard 1st material response or ams 5528 assn standard 2nd material response or ams 5520 assn standard 3rd material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification single treatment response
Style Designator
Concave
Specification Data
76301-st3-552 manufacturers standard
FSC
5310 Nuts And Washers
NIIN
002377705
NSN
5310002377705

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
ST3M552-8
Cage Code:
76301
Status:
A
MSDS:
Part Number:
HL382-16PBW
Cage Code:
73197
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 5310-00-237-7705
What are the manufacturers of nsn 5310002377705?
Does this nsn 5310002377705 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310002377705
A washer which is round with a centrally located hole. one bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. see also washer (1), convex. excludes washer (1), recessed and bearing, washer, thrust.
Does nsn 5310002377705 contain any precious metals?
No precious metal content.
Does nsn 5310002377705 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310002377705?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15930
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
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