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Flat Washer NSN 5310-01-397-1776

Item Description

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.

NSN 5310-01-397-1776 NSN: 5310-01-397-1776

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Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
Between 0.755 inches and 0.775 inches
Edge Shape
Round
Center Hole Shape
1 round
Thickness
Between 0.086 inches and 0.094 inches
Overall Diameter
Between 1.307 inches and 1.332 inches
Material
Steel comp 1020 or steel comp 1025
Material Specification
Mil-s-7952 military specification single material response or astm a568 assn standard single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response
Specification Data
80205-nas1149 professional/industrial association standard
FSC
5310 Nuts And Washers
NIIN
013971776
NSN
5310013971776

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
801169
Cage Code:
19203
Status:
A
MSDS:
Part Number:
10025553
Cage Code:
1EFH8
Status:
A
MSDS:
Part Number:
13393-011
Cage Code:
21439
Status:
A
MSDS:
Part Number:
08-203450
Cage Code:
72540
Status:
A
MSDS:
Part Number:
901558-13
Cage Code:
75477
Status:
A
MSDS:
Part Number:
CVC754-872C33
Cage Code:
80378
Status:
A
MSDS:
Part Number:
NAS1149C1290
Cage Code:
80205
Status:
A
MSDS:
Part Number:
Z00.N5741503605
Cage Code:
F0086
Status:
A
MSDS:
Part Number:
NAS1149F1290P
Cage Code:
80205
Status:
A
MSDS:
Part Number:
2410108
Cage Code:
001JK
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 5310-01-397-1776
What are the manufacturers of nsn 5310013971776?
Does this nsn 5310013971776 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310013971776
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. the hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). the thickness cannot exceed 25 percent of the largest outside dimension. when the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. the maximum tolerance is applied to dimensions and used as a determining factor. items with separable lamination use shim. for items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. excludes disk, valve, graphite impregnated and lubricated items.
Does nsn 5310013971776 contain any precious metals?
No precious metal content.
Does nsn 5310013971776 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310013971776?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
13393
FIIG:
A022B0
App. Key:
B
Cond. Code:
1
Status:
A

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