3949-1

View detailed technical data, stock status, and sourcing information for: 3949-1
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-01-051-9668

Item Name Code

00014

Assigment Date

12/08/1977 (48 years ago)

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes:straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

radial load direction, 1.7500 inches nominal overall width, 44.5000 inches nominal overall outside diameter, coiled retainer fabrication method, ground surface finish

Product Characteristics

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

Overall Width: 1.7500 inches nominal
Overall Outside Diameter: 44.5000 inches nominal
Surface Finish: ground
Retainer Fabrication Method: coiled
Load Direction: radial
Special Features: black oxide finish o/a,108 teeth 36.0000 in. gear pitch dia
Material: steel ball
Material: steel comp 4150 or steel comp 8660 inner ring
Material: steel comp 4150 or steel comp 8660 outer ring
Material: steel retainer
Material Document And Classification: a-3949-5,fscm 32828 mfr ref single material response retainer
Material Document And Classification: aisi assn std all material responses outer ring
Material Document And Classification: aisi assn std all material responses inner ring

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
03949001	Annular Ball Bearing
3949-1	Annular Ball Bearing
3949001	Annular Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-01-051-9668?

The FSCG of the NSN 3110-01-051-9668 is 3110

Does the NSN 3110-01-051-9668 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105028

Does NSN 3110-01-051-9668 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 3110-01-051-9668 contain precious materials?

Precious metal content is unknown

Does NSN 3110-01-051-9668 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 3110-01-051-9668 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Thu, Dec 8, 1977