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NSN 540A72

Convex Washer

A flat metal or plastic item of various peripheral shapes having a solid (not laminated) cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole having a solid rectangular cross-section use disk, solid, plain. For round or hexagonal items with only one hole centrally located and with the length (thickness) exceeding 25 percent of the outside diameter or distance across peripheral flats, see spacer, sleeve. The thickness between the two parallel bearing surfaces must be 0.006 inch, (0.152 mm) or more for items less than 1/4 inch (6.35 mm) across the peripheral diameter, or smallest overall outside dimension, or must be 0.016 inch (0.406 mm) or more for items 1/4 inch (6.35 mm) or greater across the peripheral diameter or smallest overall outside dimension. For items with a thickness less than those indicated above, see shim. For items with one hole centrally located conforming to the above dimensional criteria use washer, flat or spacer, ring as applicable. When thickness and/or outsidediameter or smallest overall outside dimension is designated as a tolerance /dimension the maximum dimension will be used to determine compliance. Excludes:gasket; insulator (as modified) and mounting pad, electrical-electronic component.

0.656 inches nominal hole diameter, 0.059 inches nominal material thickness, 1.250 inches nominal outside diameter, unable to decode material, convex style designator.

NSN 5310-01-465-8833 Datasheet

(NSN) National Stock Number
5310-01-465-8833
(FSG) Federal Supply Group
53 - Hardware and Abrasives
(FSC) Federal Supply Classification
5310 - Nuts and Washers
(NIIN) National Item Identification Number
01-465-8833
Requires Demilitarization
Yes
(INC) Item Name Code
15931
Date
Thu, Jun 24, 1999
Schedule B Code
7318220000
Hole Diameter
0.656 inches nominal
Material Thickness
0.059 inches nominal
Material
unable to decode
Outside Diameter
1.250 inches nominal
Style Designator
convex
Surface Treatment
unable to decode

Identification

Demilitarization Code
A - Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Precious Metals Indicator
A - Item does not contain precious metal.
Hazardous Metals Indicator
N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Pseudo Item Name Code
0015931

Cross Reference

CAGE Codes

3ES68
Greenlees Filter Llc
U.s./canadian manufacturers
78940
United Air Filter Inc.
U.s./canadian manufacturers

Freight Information

Air Commodity
BZ -
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
National Motor Freight Class Rating
U - 50.0
Special Handling
9 - Other or no special handling required (sh)
Type of Cargo
Z - No special type of cargo code applicable
Uniform Freight Classification Item Number
55210
Water Commodity
713 - Metal hardware
National Motor Freight Classification Item Number
194160

Schedule B & Trade

Schedule B
7318-22-0000
Description
washers other than lock washers, iron or steel
End Use
12300 - Finished metal shapes
Unit of Quantity
KG
USDA
Yes
(SITC) Standard International Trade Classification
69422
(NAICS) North American Industrial Classification System
332722

Questions & Answers

  1. What is the FSCG of the NSN 5310-01-465-8833?

    The FSCG of the NSN 5310-01-465-8833 is 5310

  2. Does the NSN 5310-01-465-8833 have a Schedule B code assigned?

    Yes, the Schedule B code is 7318220000

  3. Does NSN 5310-01-465-8833 require demilitarization?

    Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

  4. Does NSN 5310-01-465-8833 contain precious materials?

    Item does not contain precious metal.

  5. Does NSN 5310-01-465-8833 contain hazardous materials?

    Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

  6. When the NSN 5310-01-465-8833 was assigned to the Federal Catalog?

    It was assigned 27 years ago, on Thu, Jun 24, 1999

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