8615947

View detailed technical data, stock status, and sourcing information for: 8615947
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Federal Supply Group

Fire Control Equipment

Federal Supply Classification

1240 Optical Sighting and Ranging Equipment

National Stock Number

1240-01-191-1670

Item Name Code

10908

Assigment Date

10/06/1984 (41 years ago)

An item consisting of a pair of electrical conductors imbedded in a semiconductor material, having a negative temperature coefficient of resistance which is tightly encased in a suitable metallic tube. The ends of the assembly are terminated for adaption in a fire detector system.

1.692 inches nominal diameter, both polished surface, not provided polished periphery, 45.000 nominal bevel angle in deg, 0.157 inches nominal thickness

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Diameter: 1.692 inches nominal
Thickness: 0.157 inches nominal
Polished Surface: both
Polished Periphery: not provided
Bevel Angle In Deg: 45.000 nominal
Cubic Measure: 0.4495 cubic inches
Special Features: light deviation not to exceed 1.0minute of arc; surface quality is 80-50; spherical power not to exceed 4 millidiopters; astigmatism not to exceed 2 millidiopters
Material: glass optical location not otherwise specified
Material Document And Classification: mil-g-174, class 1, grade c, type 517-645 mil spec single material response location not otherwise specified

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
8615947	Optical Instrument Window

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 1240-01-191-1670?

The FSCG of the NSN 1240-01-191-1670 is 1240

Does the NSN 1240-01-191-1670 have a Schedule B code assigned?

Yes, the Schedule B code is 9803200000

Does NSN 1240-01-191-1670 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.

Does NSN 1240-01-191-1670 contain precious materials?

Item does not contain precious metal.

Does NSN 1240-01-191-1670 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.

When the NSN 1240-01-191-1670 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Sat, Oct 6, 1984