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Shouldered And Recessed Washer NSN 5310-01-031-8410

Item Description

A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. Excludes insulator, washer and thrust type washers.

NSN 5310-01-031-8410 NSN: 5310-01-031-8410

Features and Characteristics

Hole Diameter
Between 0.4385 inches and 0.4435 inches
Outside Diameter
1.115 inches
Recess Diameter
Between 0.4635 inches and 0.4785 inches
Shoulder Height
Between 0.111 inches and 0.123 inches
Material Thickness
Between 0.128 inches and 0.138 inches
Hardness Rating
Between 27.0 rockwell c and 35.0 rockwell c
Criticality Code Justification
Zzzw
Recess Angle
90.0 degrees
Special Features
Shoulder beveled on a 30 degrees angle
Color
Black
Material
Steel comp 4140h
Surface Treatment
Oxide film
Surface Treatment Specification
Mil-c-13924, class 1 military specification single treatment response
Style Designator
Shouldered and recessed
Departure From Cited Document
As modified by special quality control testing for mk 48 torpedo
FSC
5310 Nuts And Washers
NIIN
010318410
NSN
5310010318410

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2498571
Cage Code:
10001
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 5310-01-031-8410
What are the manufacturers of nsn 5310010318410?
Does this nsn 5310010318410 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310010318410
A washer, round in shape, having a centrally located hole. one bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. the thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. for items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. excludes insulator, washer and thrust type washers.
Does nsn 5310010318410 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310010318410 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310010318410?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15935
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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