1918-RD-102B

View detailed technical data, stock status, and sourcing information for: 1918-RD-102B
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-01-261-8049

Item Name Code

30213

Assigment Date

08/19/1987 (38 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).

4.9209 inches minimum and 4.9213 inches maximum overall outside diameter, machined retainer fabrication method, 1.4073 inches minimum and 1.4173 inches maximum overall width, tf34-100 engine end item identification, 3.5430 inches minimum and 3.5433 inches maximum bore diameter

Product Characteristics

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

Overall Width: 1.4073 inches minimum and 1.4173 inches maximum
Bore Diameter: 3.5430 inches minimum and 3.5433 inches maximum
Overall Outside Diameter: 4.9209 inches minimum and 4.9213 inches maximum
End Item Identification: tf34-100 engine
Retainer Fabrication Method: machined
Load Direction: radial
Features Provided: extra light duty series
Criticality Code Justification: supp
Contact Angle: 23.5 degrees nominal
Special Features: "internal fit-up contact angle at point of contact is outward convergent;bore shape is straight;the directional capability of item is double;has 24 ball bearings;axial play is 0.0036 min. and 0.0040 max.;adjacent side faces of outer ring marked "thrust""
Material: unable to decode
Material Document And Classification: unable to decode
Style Designator: counterbored outer rings, non-separable, back to back mounting
Supplementary Features: flight safety critical aircraft part

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
3110-00-114-5342	No Name Available	11/01/2000
3110-01-060-5367	No Name Available	11/01/2000
3110-01-076-5023	No Name Available	11/01/2000
3110-01-252-3184	No Name Available	05/01/1996

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
13374	Duplex Ball Bearing
1918-RD-102B	Duplex Ball Bearing
1918-RD-104B	Duplex Ball Bearing
5039T07	Duplex Ball Bearing
5039T07P01	Duplex Ball Bearing
5039T07P04	Duplex Ball Bearing
5039T07P05	Duplex Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-01-261-8049?

The FSCG of the NSN 3110-01-261-8049 is 3110

Does the NSN 3110-01-261-8049 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105068

Does NSN 3110-01-261-8049 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 3110-01-261-8049 contain precious materials?

Item does not contain precious metal.

Does NSN 3110-01-261-8049 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 3110-01-261-8049 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Wed, Aug 19, 1987