The Roller,bearing, cataloged under National Stock Number 3110-01-321-9887, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-321-9887 |
| Primary Part Number | SW28896-1 |
| Item Name | Roller,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Style Designator | SINGLE ROW, NON-LOCATING, CYLINDRICAL INNER RING, ONE LIP OUTER RING, SEPARABLE |
| Overall Outside Diameter | 6.0000 INCHES NOMINAL IN |
| Bore Diameter | 4.6210 INCHES MINIMUM AND 4.6220 INCHES MAXIMUM IN |
| Material | STEEL COMP 4140H 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 |
|---|---|
| SW28896-1 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| SW28896-1 | 5/2 Secondary reference U.S. Government activity |
| SW28896-1 | 5/9 Secondary reference 2is Inc. |
NSN 3110-01-321-9887 is a Roller,bearing, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-321-9887 has 1 manufacturer part number on file: SW28896-1 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for SW28896-1: Style Designator: SINGLE ROW, NON-LOCATING, CYLINDRICAL INNER RING, ONE LIP OUTER RING, SEPARABLE; Overall Width: 4.0000 INCHES NOMINAL IN; Overall Outside Diameter: 6.0000 INCHES NOMINAL IN; End Item Identification: 2330-01-303-8832 M1000 CHETTL TRAILER. 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.