J-18839-1

View detailed technical data, stock status, and sourcing information for: J-18839-1
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-360-1879

Item Name Code

28215

Assigment Date

06/19/1992 (34 years ago)

A mirror specifically designed for use in an optical instrument. Its surface may be coated to reduce reflection. Excludes:prism, optical instrument.

not casehardened casehardening indicator, 1.840 inches nominal outside diameter, 0.999 inches minimum and 1.000 inches maximum bore inside diameter, 1.500 in. radius by 1.000 in. w,machined in od of body special features, 1.870 inches nominal face width

Product Characteristics

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

Casehardening Indicator: not casehardened
Outside Diameter: 1.840 inches nominal
Face Width: 1.870 inches nominal
Bore Inside Diameter: 0.999 inches minimum and 1.000 inches maximum
Special Features: 1.500 in. radius by 1.000 in. w,machined in od of body
Material: nickel alloy
Style Designator: plain

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
1121C0318	Linear-Rotary Motion Roller
1221C0318	Linear-Rotary Motion Roller
J-18839-1	Linear-Rotary Motion Roller

FAQs

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

What is the FSCG of the NSN 3120-01-360-1879?

The FSCG of the NSN 3120-01-360-1879 is 3120

Does the NSN 3120-01-360-1879 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-01-360-1879 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 3120-01-360-1879 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-360-1879 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 3120-01-360-1879 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Fri, Jun 19, 1992