The Tee,tube, cataloged under National Stock Number 4730-01-283-6618, 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 18 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-283-6618 |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | FLARED (TUBE) SECOND END |
| Connection Style | SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END THIRD END |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE THIRD END |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES ALL ENDS IN |
| Leg Length | 1.030 INCHES MINIMUM AND 1.090 INCHES MAXIMUM FIRST END IN |
| Leg Length | 1.030 INCHES MINIMUM AND 1.090 INCHES MAXIMUM SECOND END IN |
| Leg Length | 1.190 INCHES MINIMUM AND 1.310 INCHES MAXIMUM THIRD END IN |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A SECOND END A |
| Thread Class | 2A FIRST END A |
| Thread Class | 2B THIRD END |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF ALL ENDS |
| 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 |
|---|---|
| MIL-DTL-18866 | 4/1 Identification reference U.S. Government activity |
| MS51524B6 | 2/2 Government specification standardization U.S. Government activity |
NSN 4730-01-283-6618 is a Tee,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-283-6618: Connection Style: FLARED (TUBE) SECOND END; Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END THIRD END; Connection Style: FLARED (TUBE) FIRST END; Connection Type: THREADED EXTERNAL TUBE FIRST END. 18 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.