The Tee,tube to Boss, cataloged under National Stock Number 4730-01-230-6609, 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 26 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-230-6609 |
| Item Name | Tee,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 NATURAL COLOR FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED (TUBE) FIRST END BULKHEAD |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Connection Style | FLARED (TUBE) THIRD END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END BULKHEAD |
| Connection Type | THREADED EXTERNAL TUBE THIRD END |
| Connection Type | THREADED INTERNAL BOSS SECOND END |
| Material Document and Classification | MIL-F-5509 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES THIRD END IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END BULKHEAD IN |
| Leg Length | 1.273 INCHES NOMINAL THIRD END IN |
| Leg Length | 0.773 INCHES NOMINAL SECOND END IN |
| Leg Length | 2.023 INCHES NOMINAL FIRST END BULKHEAD IN |
| Nominal Thread Size | 0.562 INCHES THIRD END IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Nominal Thread Size | 0.562 INCHES FIRST END BULKHEAD IN |
| Seat Angle | 37.0 DEGREES FIRST END BULKHEAD |
| Seat Angle | 37.0 DEGREES THIRD END |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A FIRST END BULKHEAD A |
| Thread Class | 3A THIRD END A |
| Thread Class | 3B SECOND END |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) THIRD 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 |
| Reference | Meaning |
|---|---|
| GF11J | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| GF11J-060406 | 3/9 Design control — primary reference United Supply Co Inc |
| GF11J-060406 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4730-01-230-6609 is a Tee,tube to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-362-1687. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-230-6609: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 NATURAL COLOR FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED (TUBE) FIRST END BULKHEAD; Connection Style: GASKET SEAL (BOSS) SECOND END; Connection Style: FLARED (TUBE) THIRD END. 26 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.