The Reducer,pipe, cataloged under National Stock Number 4730-01-499-3663, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-499-3663 |
| Primary Part Number | 50979015 |
| Item Name | Reducer,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 50979015 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| 73325-12-8S | Meritor Heavy Vehicle Systems, Llc (USA) |
| S3325X12X8 | Meritor Heavy Vehicle Systems, Llc (USA) |
| 50979015 | Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3) (USA) |
| Reference | Meaning |
|---|---|
| 50979015 | 5/9 Secondary reference Fontaine Fifth Wheel Company |
NSN 4730-01-499-3663 is a Reducer,pipe, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-499-3663 has 4 manufacturer part numbers on file: 50979015 (Meritor Heavy Vehicle Systems, Llc), 73325-12-8S (Meritor Heavy Vehicle Systems, Llc), S3325X12X8 (Meritor Heavy Vehicle Systems, Llc), 50979015 (Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3)).
Key specifications for 50979015: Special Features: OVERALL LGT IS 1.50 INCH W/.875 HEX BODY IN; End Item Identification: M871A3 SEMI-TRAILER,22.5 TON,2330-01-458-6865 END ITEM. 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.
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.