The Bearing,roller,cylindrical, cataloged under National Stock Number 3110-00-293-9192, 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 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-293-9192 |
| Primary Part Number | 237903 |
| Item Name | Bearing,roller,cylindrical |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Outer Ring Width | 0.9761 INCHES MINIMUM AND 0.9811 INCHES MAXIMUM IN |
| Internal Clearance | 0.0030 INCHES MINIMUM RADIAL AND 0.0045 INCHES MAXIMUM RADIAL IN |
| Locating Feature | NONLOCATING |
| Surface Finish | GROUND |
| Style Designator | ANGULAR CONTACT, SPHERICAL ROLLERS, SEPARABLE |
| Overall Outside Diameter | 4.3304 INCHES MINIMUM AND 4.3307 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Standard Tolerance Designation | RBEC NO.5 |
| Bore Diameter | 2.7556 INCHES MINIMUM AND 2.7759 INCHES MAXIMUM IN |
| Material | COPPER ALLOY RETAINER |
| Material | STEEL COMP E52100 ROLLER |
| Material | STEEL COMP E52100 OUTER RING |
| Material | STEEL COMP E52100 INNER RING |
| Inner Ring Width | 1.1761 INCHES MINIMUM AND 1.1811 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 | F |
| Part Number | Manufacturer |
|---|---|
| 237903 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 3110-00-293-9192 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 3110-00-293-9192 has 1 manufacturer part number on file: 237903 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 237903: Retainer Fabrication Method: MACHINED; Outer Ring Width: 0.9761 INCHES MINIMUM AND 0.9811 INCHES MAXIMUM IN; Internal Clearance: 0.0030 INCHES MINIMUM RADIAL AND 0.0045 INCHES MAXIMUM RADIAL IN; Locating Feature: NONLOCATING. 15 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.