42274-1

View detailed technical data, stock status, and sourcing information for: 42274-1
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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

6650-01-242-4857

Item Name Code

21884

Assigment Date

10/12/1986 (39 years ago)

A device designed for testing the compression of engine cylinders.

2.285 inches nominal diameter, 0.220 inches nominal axial thickness, 1270-01-072-4555 sight,helicopter end item identification, plano-concave single lens style, 0.000 inches element left surface radius

Product Characteristics

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

Diameter: 2.285 inches nominal
End Item Identification: 1270-01-072-4555 sight,helicopter
Axial Thickness: 0.220 inches nominal
Single Lens Style: plano-concave
Element Left Surface Radius: 0.000 inches
Element Right Surface Radius: -3.396 inches
Material: glass optical
Material Document And Classification: jan-g-174 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
42274-1	Optical Instrument Lens

FAQs

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

What is the FSCG of the NSN 6650-01-242-4857?

The FSCG of the NSN 6650-01-242-4857 is 6650

Does the NSN 6650-01-242-4857 have a Schedule B code assigned?

Yes, the Schedule B code is 9018500000

Does NSN 6650-01-242-4857 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 6650-01-242-4857 contain precious materials?

Item does not contain precious metal.

Does NSN 6650-01-242-4857 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 6650-01-242-4857 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Sun, Oct 12, 1986