The Tube,guide, cataloged under National Stock Number 4710-00-446-2644, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Westinghouse Electric Corp. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4710-00-446-2644 |
| Primary Part Number | 306D172H09 |
| Item Name | Tube,guide |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Westinghouse Electric Corp |
| 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 |
|---|---|
| 306D172H09 | Westinghouse Electric Corp (USA) |
| 306B172H09 | Northrop Grumman Systems Corporation (USA) |
| 306B172H09 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 306B172H09 | 3/9 Design control — primary reference Westinghouse Electric Corp Control Business Unit |
| 4710PL1374920 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 306D172H09 | 5/9 Secondary reference U.S. Government activity |
NSN 4710-00-446-2644 is a Tube,guide, manufactured by Westinghouse Electric Corp, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-00-446-2644 has 3 manufacturer part numbers on file: 306D172H09 (Westinghouse Electric Corp), 306B172H09 (Northrop Grumman Systems Corporation), 306B172H09 (Westinghouse Electric Corp).
Key specifications for 306D172H09: End Item Identification: WESTINGHOUSE MODEL SP WELDING GUN. 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.