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Shouldered And Recessed Washer NSN 5310-01-508-1258

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 5310-01-508-1258 NSN: 5310-01-508-1258

Features and Characteristics

Hole Diameter
Between 0.404 inches and 0.409 inches
Shoulder Diameter
0.722 inches
Outside Diameter
Between 1.498 inches and 1.505 inches
Overall Height
0.170 inches
Recess Diameter
0.738 inches
Shoulder Height
0.100 inches
Recess Angle
100.0 degrees
Part Name Assigned By Controlling Agency
Navy special project
Special Features
Washer for midbody fairing installation
Material
Titanium alloy uns r56401
Material Specification
Mil-t-9046, code ab-2, condition a military specification 1st material response or astm b265, grade 23 assn standard 2nd material response or mil-t-9047, comp 6al-4v, cond a military specification 3rd material response or astm b-348, grade 23 assn standard 4th material response
Style Designator
Shouldered and recessed
FSC
5310 Nuts And Washers
NIIN
015081258
NSN
5310015081258

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
6393680-278
Cage Code:
D9182
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 5310-01-508-1258
What are the manufacturers of nsn 5310015081258?
Does this nsn 5310015081258 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310015081258
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 5310015081258 contain any precious metals?
No precious metal content.
Does nsn 5310015081258 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310015081258?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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