The Plug,self Closing, cataloged under National Stock Number 4730-01-044-6730, 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 Williams International Co., L.l.c.. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-044-6730 |
| Primary Part Number | 25165 |
| Item Name | Plug,self Closing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Williams International Co., L.l.c. |
| 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 |
|---|---|
| 25165 PRIMARY | Williams International Co., L.l.c. (USA) |
| Reference | Meaning |
|---|---|
| A3929 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-044-6730 is a Plug,self Closing, manufactured by Williams International Co., L.l.c., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-044-6730 has 1 manufacturer part number on file: 25165 (Williams International Co., L.l.c.).
1 possible match (shared part number, not a government interchangeability claim): 4330-01-353-3030. Verify interchangeability with system specifications before substitution.
Key specifications for 25165: End Item Identification: AIRCRAFT MODEL S-3. 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.