The Roller,bearing, cataloged under National Stock Number 3110-01-025-7147, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Timken Aerospace, Inc Dba Torrington Product. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-025-7147 |
| Primary Part Number | QBR27251 |
| Item Name | Roller,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Timken Aerospace, Inc Dba Torrington Product |
| Status | ACTIVE |
| Rolling Element Diameter | 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Style Designator | CYLINDRICAL ROLLER, FLAT ENDS |
| Material Document and Classification | AISI 50100 OR 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Material | STEEL COMP E50100 OR STEEL COMP E52100 OVERALL |
| 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 |
|---|---|
| QBR27251 PRIMARY | Timken Aerospace, Inc Dba Torrington Product (USA) |
| Reference | Meaning |
|---|---|
| 103539 | 5/2 Secondary reference U.S. Government activity |
NSN 3110-01-025-7147 is a Roller,bearing, manufactured by Timken Aerospace, Inc Dba Torrington Product, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-025-7147 has 1 manufacturer part number on file: QBR27251 (Timken Aerospace, Inc Dba Torrington Product).
3 possible matches (shared part number, not a government interchangeability claim): 5120-01-076-7496, 5999-01-160-1927, 4710-01-620-4281. Verify interchangeability with system specifications before substitution.
Key specifications for QBR27251: Rolling Element Diameter: 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN; Style Designator: CYLINDRICAL ROLLER, FLAT ENDS; Material Document and Classification: AISI 50100 OR 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Overall Length: 1.3025 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN. 4 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.