NSN 10481978

A flat, transparent piece of glass, generally of fused quartz, with one or both principal surfaces polished to within a few millionths of an inch of a true plane. It is used in conjunction with a monochromatic light source to measure the flatness of precision finished surfaces, and to determine the distance and parallelism between precision finished surfaces by comparison with known standards. In operation the flat is superimposed, reference surface downward, on the parts under test and when illuminated by monochromatic light the rays reflected from the reference surface are either reinforced or neutralized by the rays reflected from the surface under test producing interference bands which reveal any variations in the thickness of the film of air between surface under test and the flat. Excludes:optical parallels.

8305-01-628-7686, cloth patch.

NSN 8305-01-628-7686 Datasheet

(NSN) National Stock Number

8305-01-628-7686

(FSG) Federal Supply Group

83 - Textiles, Leather, Furs, Apparel and Shoe Findings, Tents and Flags

(FSC) Federal Supply Classification

8305 - Textile Fabrics

(NIIN) National Item Identification Number

01-628-7686

Requires Demilitarization

Yes

(INC) Item Name Code

46172

Date

Tue, Jun 10, 2014

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

0046172

Cross Reference

CAGE Codes

A486G

Nimikkeistokeskus Ncb Finland

Government departments or units, including military organizations

Freight Information

Questions & Answers

1. What is the FSCG of the NSN 8305-01-628-7686?

   The FSCG of the NSN 8305-01-628-7686 is 8305

2. Does NSN 8305-01-628-7686 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 8305-01-628-7686 contain precious materials?

   Item does not contain precious metal.

4. Does NSN 8305-01-628-7686 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 8305-01-628-7686 was assigned to the Federal Catalog?

   It was assigned 12 years ago, on Tue, Jun 10, 2014