The Bearing,roller,cylindrical, cataloged under National Stock Number 3110-01-268-5995, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-268-5995 |
| Primary Part Number | 2187145 |
| Item Name | Bearing,roller,cylindrical |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Outer Ring Width | 0.9399 INCHES MINIMUM AND 0.9449 INCHES MAXIMUM IN |
| Locating Feature | ONE DIRECTION |
| Surface Finish | UNGROUND |
| Style Designator | ONE LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE |
| Overall Outside Diameter | 6.7451 INCHES MINIMUM AND 6.7461 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Standard Tolerance Designation | ABEC NO.5 |
| Bore Diameter | 4.8936 INCHES MINIMUM AND 4.8939 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Inner Ring Width | 1.0580 INCHES MINIMUM AND 1.0630 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2187145 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 2182196 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 742936 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 707494 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 2187144 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 742936 | 5/1 Secondary reference Skf Usa Inc. |
| 707494 | 5/1 Secondary reference Timken Co Div the Timken Company |
| 2187144 | 5/1 Secondary reference Mpb Corporation Dba Mpb Corp |
| 2182196 | 5/1 Secondary reference Skf Usa Inc. |
NSN 3110-01-268-5995 is a Bearing,roller,cylindrical, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-268-5995 has 5 manufacturer part numbers on file: 2187145 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 2182196 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 742936 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 707494 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 2187144 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 2187145: Outer Ring Width: 0.9399 INCHES MINIMUM AND 0.9449 INCHES MAXIMUM IN; Locating Feature: ONE DIRECTION; Surface Finish: UNGROUND; Style Designator: ONE LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE. 10 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.
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.