The Tee,tube to Boss, cataloged under National Stock Number 4730-01-078-3083, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-078-3083 |
| Item Name | Tee,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Connection Style | FLARED (TUBE) THIRD END |
| Connection Type | THREADED EXTERNAL TUBE THIRD END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED INTERNAL BOSS SECOND END |
| Material Document and Classification | AMS4117 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4127 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Leg Length | 0.890 INCHES MINIMUM AND 0.910 INCHES MAXIMUM SECOND END IN |
| Leg Length | 1.240 INCHES MINIMUM AND 1.280 INCHES MAXIMUM THIRD END IN |
| Leg Length | 1.390 INCHES MINIMUM AND 1.410 INCHES MAXIMUM FIRST END IN |
| Nominal Thread Size | 0.875 INCHES FIRST END IN |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES THIRD END |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3A FIRST END A |
| Thread Class | 3B SECOND END |
| Material | ALUMINUM 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 |
| Reference | Meaning |
|---|---|
| 4060T29P01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-078-3083 is a Tee,tube to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-078-3083: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: GASKET SEAL (BOSS) SECOND END; Connection Style: FLARED (TUBE) THIRD END; Connection Type: THREADED EXTERNAL TUBE THIRD END. 17 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.