The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-00-100-0509, 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 4 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through both NSN and commercial part number lookups. 25 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 12 items share a part number with this NSN in the catalog (possible match — not a government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 | 3110-00-100-0509 |
| Primary Part Number | 11520 |
| Item Name | Cup,tapered Roller Bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | The Timken Corporation |
| Status | CANCELLED |
| Outside Diameter | 1.6875 INCHES NOMINAL IN |
| Backface Corner Radius | 0.0630 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 |
|---|---|
| 11520 PRIMARY | The Timken Corporation (USA) |
| 11520 | The Timken Company (FRA) |
| 11520 PRIMARY | Ntn Bearing Corporation of America (USA) |
| K11520 | Skf France (FRA) |
| Reference | Meaning |
|---|---|
| 152808R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 80641 | 5/9 Secondary reference Thales Air Defence |
| R20992 | 5/9 Secondary reference U.S. Government activity |
| 52941 | 5/9 Secondary reference Am General Llc |
| BT11520 | 5/9 Secondary reference Federal-Mogul Corp Government Sales Dept |
| 16990 | 5/9 Secondary reference U.S. Government activity |
| 1793515 | 5/9 Secondary reference Chrysler Realty Company Llc Dba Daimler Chrysler |
| 550217 | 5/9 Secondary reference Roper Industries Inc Roper Pump Co Div |
| FF-B-187 | 5/9 Secondary reference U.S. Government activity |
| TU91 | 5/9 Secondary reference Cissell Manufacturing Company Dba Cissell Mfg |
| 11520 | 5/9 Secondary reference Rbc Bearings Incorporated Div West Trenton Division |
| 550217 | 5/9 Secondary reference U.S. Government activity |
| 152808R1 | 5/9 Secondary reference International Harvester Co Agricultural Equipment Div |
| B9C3126A | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| 80641 | 5/9 Secondary reference Thomson/houston Hotchkiss/brandt |
| 65C35476-3 | 5/9 Secondary reference U.S. Government activity |
| 000993-437-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| 11520 | 5/9 Secondary reference Tyson Bearing Co Div Skf Industries Inc |
| 3110PL0670064 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| GP3162 | 5/9 Secondary reference Am General Llc |
NSN 3110-00-100-0509 is a Cup,tapered Roller Bearing, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: cancelled.
NSN 3110-00-100-0509 has 4 manufacturer part numbers on file: 11520 (The Timken Corporation), 11520 (The Timken Company), 11520 (Ntn Bearing Corporation of America), K11520 (Skf France).
12 possible matches (shared part number, not a government interchangeability claim): 5935-00-131-4044, 5935-00-721-2561, 5998-00-985-0970. Verify interchangeability with system specifications before substitution.
Key specifications for 11520: Overall Width: 0.3750 INCHES NOMINAL IN; Outside Diameter: 1.6875 INCHES NOMINAL IN; Backface Corner Radius: 0.0630 INCHES NOMINAL IN; Special Features: STEEP ANGLE. 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.
NSN 3110-00-100-0509 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.