The Bearing Unit,plain, cataloged under National Stock Number 3130-00-333-3777, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Schwitzer Engine Components a Household Intl Co. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Bearing Unit,plain |
| FSC / FSG | 3130 — Bearings, Mounted (FSG 31) |
| Manufacturers | Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Schwitzer Engine Components a Household Intl Co (CAGE 53591) |
| Parameter | Value |
|---|---|
| NSN | 3130-00-333-3777 |
| Primary Part Number | 121820 |
| Item Name | Bearing Unit,plain |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Schwitzer Engine Components a Household Intl Co |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3130-00-333-3777 is a Bearing Unit,plain, manufactured by Schwitzer Engine Components a Household Intl Co, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-333-3777 has 3 manufacturer part numbers on file: 5F2161 (Caterpillar Inc Div Caterpillar Defense), 121820 (Schwitzer Engine Components a Household Intl Co), C121820 (Schwitzer Engine Components a Household Intl Co).
1 possible match (shared part number, not a government interchangeability claim): 3120-00-354-1831. Verify interchangeability with system specifications before substitution.
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.