NSN 9L2139

A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use disk, solid, plain. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see spacer, plate; washer, flat and spacer, ring. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also shim stock, laminated; shim stock assortment, gasket; and bearing, washer, thrust.

5310-01-278-0422, flat washer.

NSN 5310-01-278-0422 Datasheet

(NSN) National Stock Number

5310-01-278-0422

(FSG) Federal Supply Group

53 - Hardware and Abrasives

(FSC) Federal Supply Classification

5310 - Nuts and Washers

(NIIN) National Item Identification Number

01-278-0422

Requires Demilitarization

Yes

(INC) Item Name Code

13393

Date

Sat, Apr 30, 1988

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

U - Precious metal content is unknown

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

0013393

Cross Reference

CAGE Codes

11083

Caterpillar Inc Div Caterpillar Defense

U.s./canadian manufacturers

Freight Information

Questions & Answers

1. What is the FSCG of the NSN 5310-01-278-0422?

   The FSCG of the NSN 5310-01-278-0422 is 5310

2. Does NSN 5310-01-278-0422 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.

3. Does NSN 5310-01-278-0422 contain precious materials?

   Precious metal content is unknown

4. Does NSN 5310-01-278-0422 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.

5. When the NSN 5310-01-278-0422 was assigned to the Federal Catalog?

   It was assigned 38 years ago, on Sat, Apr 30, 1988