The Ring,bearing,inner, cataloged under National Stock Number 3110-01-325-4483, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Mpb Corporation Dba Mpb Corp. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-325-4483 |
| Primary Part Number | 5RU-1804-9K |
| Item Name | Ring,bearing,inner |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corporation Dba Mpb Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 23034786 | Rolls-Royce Corporation (USA) |
| 5RU-1804-9K PRIMARY | Mpb Corporation Dba Mpb Corp (USA) |
| 23034786AL PRIMARY | Extex Engineered Products Inc Dba Timken Aerospace Services (USA) |
| Reference | Meaning |
|---|---|
| 23034786 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 3110-01-325-4483 is a Ring,bearing,inner, manufactured by Mpb Corporation Dba Mpb Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-325-4483 has 3 manufacturer part numbers on file: 23034786 (Rolls-Royce Corporation), 5RU-1804-9K (Mpb Corporation Dba Mpb Corp), 23034786AL (Extex Engineered Products Inc Dba Timken Aerospace Services).
1 possible match (shared part number, not a government interchangeability claim): 1420-01-673-1796. Verify interchangeability with system specifications before substitution.
Key specifications for 5RU-1804-9K: End Item Identification: T63-A-700 AND T63-A-720 (TURBINE ENGINE), ROTARY WING AIRCRAFT. 0 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 3110-01-325-4483 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.