DC55999

View detailed technical data, stock status, and sourcing information for: DC55999
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-01-307-4738

Item Name Code

00051

Assigment Date

09/12/1989 (36 years ago)

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes:items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

0.3438 inches minimum overall outside diameter, 0.1881 inches minimum and 0.1886 inches maximum bore diameter, ground surface finish, 0.3650 inches minimum and 0.3700 inches maximum overall width, rigid alignment type

Product Characteristics

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

Overall Width: 0.3650 inches minimum and 0.3700 inches maximum
Bore Diameter: 0.1881 inches minimum and 0.1886 inches maximum
Overall Outside Diameter: 0.3438 inches minimum
Surface Finish: ground
Alignment Type: rigid
Material: steel comp 1012 shell
Material: steel comp 1095 roller
Material Document And Classification: fed-std-66 fed std 1st material response roller
Material Document And Classification: fed-std-66 fed std 2nd material response shell
Style Designator: non-separable, closed end, drawn shell

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
3221921	Needle Roller Bearing
DC55999	Needle Roller Bearing

FAQs

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

What is the FSCG of the NSN 3110-01-307-4738?

The FSCG of the NSN 3110-01-307-4738 is 3110

Does the NSN 3110-01-307-4738 have a Schedule B code assigned?

Yes, the Schedule B code is 8482400000

Does NSN 3110-01-307-4738 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 3110-01-307-4738 contain precious materials?

Precious metal content is unknown

Does NSN 3110-01-307-4738 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 3110-01-307-4738 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Tue, Sep 12, 1989