The Union,pipe, cataloged under National Stock Number 4730-01-428-6918, 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 Tyco Fire Products Lp. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-428-6918 |
| Primary Part Number | 406261 |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Tyco Fire Products Lp |
| Status | ACTIVE |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Nominal Thread Size | 1.500 INCHES ALL ENDS IN |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| S-405921-35 | Tyco Fire Products Lp (USA) |
| 406261 PRIMARY | Tyco Fire Products Lp (USA) |
NSN 4730-01-428-6918 is a Union,pipe, manufactured by Tyco Fire Products Lp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-428-6918 has 2 manufacturer part numbers on file: S-405921-35 (Tyco Fire Products Lp), 406261 (Tyco Fire Products Lp).
Key specifications for 406261: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Nominal Thread Size: 1.500 INCHES ALL ENDS IN; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Material: COPPER ALLOY OVERALL. 3 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.