The Tee,pipe to Tube, cataloged under National Stock Number 4730-01-339-6735, 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 Mueller Brass Co.. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-339-6735 |
| Primary Part Number | A-1376 |
| Item Name | Tee,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Mueller Brass Co. |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) THIRD END |
| Connection Style | SOCKET (TUBE) SECOND END |
| Connection Style | SOCKET (TUBE) FIRST END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | UNTHREADED INTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL PIPE THIRD END |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Leg Length | 0.562 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.562 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.562 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 0.500 INCHES THIRD END IN |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPT THIRD 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 |
|---|---|
| A-1376 PRIMARY | Mueller Brass Co. (USA) |
| Reference | Meaning |
|---|---|
| 817332-308 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-339-6735 is a Tee,pipe to Tube, manufactured by Mueller Brass Co., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-339-6735 has 1 manufacturer part number on file: A-1376 (Mueller Brass Co.).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-472-4441. Verify interchangeability with system specifications before substitution.
Key specifications for A-1376: Connection Style: PLAIN (PIPE) THIRD END; Connection Style: SOCKET (TUBE) SECOND END; Connection Style: SOCKET (TUBE) FIRST END; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 14 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.