NSN 496510

A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes:laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see gasket. For items manufactured from lubricated plastics, see bearing, washer, thrust. For items manufactured from lubricated felt, see felt, mechanical, preformed. Excludes:disk, valve; insulator washer; and shim. See also spacer, plate and spacer, sleeve.

standard tool kit part name assigned by controlling agency, switchable underwater breathing apparaus end item identification.

NSN 4220-01-659-1780 Datasheet

(NSN) National Stock Number

4220-01-659-1780

(FSG) Federal Supply Group

42 - Firefighting, Rescue, and Safety Equipment; and Environmental Protection Equipment and Materials

(FSC) Federal Supply Classification

4220 - Marine Lifesaving and Diving Equipment

(NIIN) National Item Identification Number

01-659-1780

Requires Demilitarization

Yes

(INC) Item Name Code

42187

Date

Tue, Nov 8, 2016

End Item Identification

switchable underwater breathing apparaus

Part Name Assigned By Controlling Agency

standard tool kit

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

0042187

Cross Reference

CAGE Codes

4WFB9

Aqua Lung Co Ltd

U.s./canadian manufacturers

Freight Information

Questions & Answers

1. What is the FSCG of the NSN 4220-01-659-1780?

   The FSCG of the NSN 4220-01-659-1780 is 4220

2. Does NSN 4220-01-659-1780 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 4220-01-659-1780 contain precious materials?

   Item does not contain precious metal.

4. Does NSN 4220-01-659-1780 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 4220-01-659-1780 was assigned to the Federal Catalog?

   It was assigned 9 years ago, on Tue, Nov 8, 2016