The Bearing,roller,tapered, cataloged under National Stock Number 3110-01-338-6931, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-338-6931 |
| Primary Part Number | 7HS19 |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Cup Width | 0.9375 INCHES NOMINAL IN |
| Style Designator | STRAIGHT BORE, SINGLE CUPS, SINGLE CONES CUP AND CONE SPACERS |
| Overall Outside Diameter | 4.4375 INCHES MINIMUM AND 4.4385 INCHES MAXIMUM IN |
| Backface Corner Radius | 0.0300 INCHES MAXIMUM IN |
| Cone Corner Radius | 0.1400 INCHES MAXIMUM IN |
| Standout Width | 0.2500 INCHES NOMINAL IN |
| Cone Width | 1.1875 INCHES NOMINAL IN |
| Bore Diameter | 2.6250 INCHES MINIMUM AND 2.6255 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 |
|---|---|
| 7HS19 PRIMARY | Oshkosh Defense Llc (USA) |
| 39590 ASSY 902A3 PRIMARY | The Timken Corporation (USA) |
| Reference | Meaning |
|---|---|
| 39590 ASSEMBLY 90059 | 5/9 Secondary reference The Timken Corporation |
| 39590/39521DBP25#02 | 5/9 Secondary reference Ntn Bearing Corporation of America |
| 39590 ASSEMBLY 90059 | 5/9 Secondary reference Ntn Bearing Corporation of America |
| 7HS19 | 5/9 Secondary reference Oshkosh Corp |
| A-33701 | 5/9 Secondary reference The Timken Corporation |
| 1701380 | 5/9 Secondary reference Oshkosh Corp |
NSN 3110-01-338-6931 is a Bearing,roller,tapered, manufactured by Oshkosh Defense Llc, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-338-6931 has 2 manufacturer part numbers on file: 7HS19 (Oshkosh Defense Llc), 39590 ASSY 902A3 (The Timken Corporation).
Key specifications for 7HS19: Cup Width: 0.9375 INCHES NOMINAL IN; Style Designator: STRAIGHT BORE, SINGLE CUPS, SINGLE CONES CUP AND CONE SPACERS; Overall Width: 2.6380 INCHES MINIMUM AND 2.6660 INCHES MAXIMUM IN; Overall Outside Diameter: 4.4375 INCHES MINIMUM AND 4.4385 INCHES MAXIMUM IN. 8 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.