SM-D-850293

View detailed technical data, stock status, and sourcing information for: SM-D-850293
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Federal Supply Group

Instruments and Laboratory Equipment

Federal Supply Classification

6650 Components and Accessories Test Equipment Optical Instruments

National Stock Number

6650-01-271-8239

Item Name Code

21884

Assigment Date

01/31/1988 (38 years ago)

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.

3.133 inches minimum and 3.137 inches maximum diameter, 4.932 inches element left surface radius, 0.418 inches nominal length, 0.204 inches minimum and 0.208 inches maximum axial thickness, meniscus diverging single lens style

Product Characteristics

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

Diameter: 3.133 inches minimum and 3.137 inches maximum
Length: 0.418 inches nominal
Axial Thickness: 0.204 inches minimum and 0.208 inches maximum
Single Lens Style: meniscus diverging
Element Left Surface Radius: 4.932 inches
Element Right Surface Radius: 11.110 inches
Special Features: coated with reflective material; edges to be chamfer to 45 deg; center ofglass hole shell be .500 in. dia
Material: glass optical
Material Document And Classification: mil-g-174, grade a, type 517-642 mil spec single material response

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
SM-D-850293	Optical Instrument Lens

FAQs

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

What is the FSCG of the NSN 6650-01-271-8239?

The FSCG of the NSN 6650-01-271-8239 is 6650

Does the NSN 6650-01-271-8239 have a Schedule B code assigned?

Yes, the Schedule B code is 9018500000

Does NSN 6650-01-271-8239 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 6650-01-271-8239 contain precious materials?

Item does not contain precious metal.

Does NSN 6650-01-271-8239 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 6650-01-271-8239 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sun, Jan 31, 1988