The Tee,pipe to Tube, cataloged under National Stock Number 4730-01-308-5591, 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 Army Weapons Command Attn Amswe-Ree-S. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 4730-01-308-5591 |
| Primary Part Number | 442346 |
| Item Name | Tee,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Army Weapons Command Attn Amswe-Ree-S |
| Status | ACTIVE |
| Connection Style | INVERTED FLARE (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) THIRD END |
| Connection Style | INVERTED FLARE (TUBE) SECOND END |
| Connection Type | THREADED EXTERNAL PIPE THIRD END |
| Connection Type | THREADED INTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Leg Length | 0.422 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.422 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.6340 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Nominal Thread Size | 0.125 INCHES THIRD END IN |
| Seat Angle | 42.0 DEGREES FIRST END |
| Seat Angle | 42.0 DEGREES SECOND END |
| Thread Class | 2B FIRST END |
| Thread Class | 2B SECOND END |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPTF THIRD END |
| Thread Series Designator | UNF FIRST END |
| Thread Series Designator | UNF SECOND END |
| 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 |
|---|---|
| 442346 | Army Weapons Command Attn Amswe-Ree-S (USA) |
NSN 4730-01-308-5591 is a Tee,pipe to Tube, manufactured by Army Weapons Command Attn Amswe-Ree-S, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-308-5591 has 1 manufacturer part number on file: 442346 (Army Weapons Command Attn Amswe-Ree-S).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-621-0249. Verify interchangeability with system specifications before substitution.
Key specifications for 442346: Connection Style: INVERTED FLARE (TUBE) FIRST END; Connection Style: PLAIN (PIPE) THIRD END; Connection Style: INVERTED FLARE (TUBE) SECOND END; Connection Type: THREADED EXTERNAL PIPE THIRD END. 22 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.