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Shouldered And Recessed Washer NSN 5310-01-124-1270

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 5310-01-124-1270 NSN: 5310-01-124-1270

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Features and Characteristics

Hole Diameter
Between 0.192 inches and 0.195 inches
Shoulder Diameter
Between 0.615 inches and 0.620 inches
Outside Diameter
Between 0.985 inches and 0.990 inches
Recess Diameter
Between 0.218 inches and 0.234 inches
Shoulder Height
Between 0.115 inches and 0.130 inches
Material Thickness
Between 0.120 inches and 0.125 inches
Recess Angle
Between 85.0 degrees and 95.0 degrees
Surface Finish
64.0 microinches all surfaces
Special Features
Chamfer outside left corner and outside right corner of flange 0.030 in. By 45 deg
Material
Steel comp 630
Material Specification
Ams 5643 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Ss8435, fscm 78286 mfr ref single treatment response
Style Designator
Shouldered and recessed both sides
FSC
5310 Nuts And Washers
NIIN
011241270
NSN
5310011241270

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
65662-03813-101
Cage Code:
78286
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 5310-01-124-1270
What are the manufacturers of nsn 5310011241270?
Does this nsn 5310011241270 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011241270
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 5310011241270 contain any precious metals?
No precious metal content.
Does nsn 5310011241270 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011241270?
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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