The Thread Piece,union, cataloged under National Stock Number 4730-01-641-4685, 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 Triumph Engine Control Systems Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-641-4685 |
| Primary Part Number | 25963 |
| Item Name | Thread Piece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Triumph Engine Control 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 |
|---|---|
| 25963 PRIMARY | Triumph Engine Control Systems Llc (USA) |
NSN 4730-01-641-4685 is a Thread Piece,union, manufactured by Triumph Engine Control Systems Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-641-4685 has 1 manufacturer part number on file: 25963 (Triumph Engine Control Systems Llc).
3 possible matches (shared part number, not a government interchangeability claim): 5325-01-691-1591, 1560-01-716-3099, 1560-01-718-6702. Verify interchangeability with system specifications before substitution.
Key specifications for 25963: Part Name Assigned by Controlling Agency: ADAPTOR; End Item Identification: TANK - FUEL DRAIN AND EJECTOR PUMP. 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.