The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-00-100-0550, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is The Timken Corporation. Government technical data includes 5 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through both NSN and commercial part number lookups. 17 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3110-00-100-0550 |
| Primary Part Number | 25820 |
| Item Name | Cup,tapered Roller Bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | The Timken Corporation |
| Status | CANCELLED |
| Style Designator | NORMAL ANGLE |
| Outside Diameter | 2.8750 INCHES NOMINAL IN |
| Backface Corner Radius | 0.0938 INCHES NOMINAL IN |
| Standard Tolerance Designation | AFBMA CLASS 2 |
| Material | STEEL OVERALL |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 25820 | The Timken Company (FRA) |
| 25820 | Nsk Corp Bearing Div (USA) |
| 25820 PRIMARY | The Timken Corporation (USA) |
| BT25820 PRIMARY | Federal-Mogul Corp Government Sales Dept (USA) |
| K25820 | Skf France (FRA) |
| Reference | Meaning |
|---|---|
| 560954R1 | 5/9 Secondary reference International Harvester Co Agricultural Equipment Div |
| 25820 | C/1 Advisory reference — outside the item-of-supply concept Federal-Mogul Corp Government Sales Dept |
| 25820 | 5/9 Secondary reference Kenosha Automotive Plant Sub of American Motors Corp |
| 799154 | 5/1 Secondary reference The Timken Corporation |
| 298-263-2 | C/1 Advisory reference — outside the item-of-supply concept Rexworks Inc |
| A27631 | 5/1 Secondary reference Cnh Industrial America Llc Dba Cnh America |
| 209MAP1 | 5/9 Secondary reference Linde Lift Truck Corp. |
| 181-275 | 5/9 Secondary reference Dresser Industries Inc Leroi Div |
| 9N7067 | 5/1 Secondary reference New Holland N.v.nc. |
| 32Z9001421-0001 | 5/1 Secondary reference Fwd Seagrave Holdings Lp |
| 560954 P1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 209MAP1 | C/1 Advisory reference — outside the item-of-supply concept Linde Material Handling North America Corporation |
| 186411 | C/1 Advisory reference — outside the item-of-supply concept Hyster-Yale Group, Inc. |
| 560954R1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 9N7067 | 5/9 Secondary reference Massey-Ferguson Inc |
| 09149AB | 5/1 Secondary reference Cnh Industrial America Llc Dba Cnh America |
| 560954R1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 3110-00-100-0550 is a Cup,tapered Roller Bearing, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: cancelled.
NSN 3110-00-100-0550 has 5 manufacturer part numbers on file: 25820 (The Timken Company), 25820 (Nsk Corp Bearing Div), 25820 (The Timken Corporation), BT25820 (Federal-Mogul Corp Government Sales Dept), K25820 (Skf France).
9 possible matches (shared part number, not a government interchangeability claim): 4720-00-540-1979, 5330-00-641-6486, 7050-00-986-2373. Verify interchangeability with system specifications before substitution.
Key specifications for 25820: Style Designator: NORMAL ANGLE; Overall Width: 0.7500 INCHES NOMINAL IN; Outside Diameter: 2.8750 INCHES NOMINAL IN; Backface Corner Radius: 0.0938 INCHES NOMINAL IN. 5 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 3110-00-100-0550 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.