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Concave Washer NSN 5310-01-160-4555

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 5310-01-160-4555 NSN: 5310-01-160-4555

Features and Characteristics

Hole Diameter
Between 0.417 inches and 0.427 inches
Radius
Between 0.365 inches and 0.385 inches
Outside Diameter
Between 0.608 inches and 0.618 inches
Material Thickness
Between 0.106 inches and 0.126 inches
Hardness Rating
Between 40.0 rockwell c and 46.0 rockwell c
Material
Steel comp 4130 or steel comp 8740
Material Specification
Mil-s-6758 military specification 1st material response or mil-s-18729 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams 6358 assn standard 2nd 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
FSC
5310 Nuts And Washers
NIIN
011604555
NSN
5310011604555

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
K39787-5
Cage Code:
15653
Status:
A
MSDS:
Part Number:
LE153-0002-0005
Cage Code:
43999
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 5310-01-160-4555
What are the manufacturers of nsn 5310011604555?
Does this nsn 5310011604555 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011604555
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 5310011604555 contain any precious metals?
No precious metal content.
Does nsn 5310011604555 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011604555?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
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