The Bearing,roller,cylindrical, cataloged under National Stock Number 3110-01-295-1941, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Kaydon Corporation Dba Kaydon Corp. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-295-1941 |
| Primary Part Number | SB2561-101 |
| Item Name | Bearing,roller,cylindrical |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Kaydon Corporation Dba Kaydon Corp |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Surface Finish | GROUND |
| Material Document and Classification | AMS 6276 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6265 ASSN STD SINGLE MATERIAL RESPONSE INNER RING |
| Material Document and Classification | AMS 6276 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6265 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING |
| Material Document and Classification | AMS 6276 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6265 ASSN STD SINGLE MATERIAL RESPONSE ROLLER |
| Overall Outside Diameter | 8.4639 INCHES MINIMUM AND 8.4646 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Standard Tolerance Designation | ABEC NO.3 |
| Bore Diameter | 6.4909 INCHES MINIMUM AND 6.4915 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 864 RETAINER |
| Material | STEEL COMP 8620 OR STEEL COMP E9310 INNER RING |
| Material | STEEL COMP 8620 OR STEEL COMP E9310 OUTER RING |
| Material | STEEL COMP 8620 OR STEEL COMP E9310 ROLLER |
| Inner Ring Width | 2.3600 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| SB2561-101 PRIMARY | Kaydon Corporation Dba Kaydon Corp (USA) |
| SB2561-101 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| SB2561-101 PRIMARY | Schaeffler Aerospace Canada Inc Div Fag Aerospace (CAN) |
| SB2561-101 PRIMARY | Mpb Corporation Dba Mpb Corp (USA) |
| Reference | Meaning |
|---|---|
| SB2561-1011 | 5/9 Secondary reference Kaydon Corporation Dba Kaydon Corp |
| 13476-001 | 5/1 Secondary reference Kaydon Corporation Dba Kaydon Corp |
NSN 3110-01-295-1941 is a Bearing,roller,cylindrical, manufactured by Kaydon Corporation Dba Kaydon Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-295-1941 has 4 manufacturer part numbers on file: SB2561-101 (Kaydon Corporation Dba Kaydon Corp), SB2561-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), SB2561-101 (Schaeffler Aerospace Canada Inc Div Fag Aerospace), SB2561-101 (Mpb Corporation Dba Mpb Corp).
Key specifications for SB2561-101: Retainer Fabrication Method: MACHINED; Surface Finish: GROUND; Material Document and Classification: AMS 6276 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6265 ASSN STD SINGLE MATERIAL RESPONSE INNER RING; Material Document and Classification: AMS 6276 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6265 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING. 14 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 3110-01-295-1941 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.