The Seat,bearing, cataloged under National Stock Number 3110-01-021-3801, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Jtekt Bearings North America Llc Div Kbna - Ord 1. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-021-3801 |
| Primary Part Number | TRB-3446-AID |
| Item Name | Seat,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Jtekt Bearings North America Llc Div Kbna - Ord 1 |
| Status | ACTIVE |
| Style Designator | FLAT RACE SURFACE |
| Outside Diameter | 2.8750 INCHES NOMINAL IN |
| Bore Diameter | 2.1250 INCHES NOMINAL IN |
| Material | STEEL 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 |
|---|---|
| TRB-3446-AID PRIMARY | Jtekt Bearings North America Llc Div Kbna - Ord 1 (USA) |
| Reference | Meaning |
|---|---|
| D1230PC36 | 5/9 Secondary reference P J Valves Inc |
| TRB-3446 | 5/1 Secondary reference Jtekt Bearings North America Llc Div Kbna - Ord 1 |
| TRB3446 | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
NSN 3110-01-021-3801 is a Seat,bearing, manufactured by Jtekt Bearings North America Llc Div Kbna - Ord 1, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-021-3801 has 1 manufacturer part number on file: TRB-3446-AID (Jtekt Bearings North America Llc Div Kbna - Ord 1).
Key specifications for TRB-3446-AID: Style Designator: FLAT RACE SURFACE; Overall Width: 0.0600 INCHES MINIMUM AND 0.0630 INCHES MAXIMUM IN; Outside Diameter: 2.8750 INCHES NOMINAL IN; Bore Diameter: 2.1250 INCHES NOMINAL IN. 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.