The Tailpiece,union, cataloged under National Stock Number 4730-01-058-8031, 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 Portland Valve Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Portland Valve Llc (CAGE 53154); Tyco Fire Products Lp (CAGE 03670) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-058-8031 |
| Primary Part Number | V-3173 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Portland Valve 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 |
|---|---|
| V-3173 PRIMARY | Portland Valve Llc (USA) |
| V-2972PC11 | Tyco Fire Products Lp (USA) |
| Reference | Meaning |
|---|---|
| V-3173 | 5/9 Secondary reference Tyco Fire Products Lp |
| V-2972 | D/9 Drawing number reference only Tyco Fire Products Lp |
NSN 4730-01-058-8031 is a Tailpiece,union, manufactured by Portland Valve Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-058-8031 has 2 manufacturer part numbers on file: V-3173 (Portland Valve Llc), V-2972PC11 (Tyco Fire Products Lp).
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.