The Tee,tube to Boss, cataloged under National Stock Number 4730-00-409-7858, 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 28 specifications, cited from the U.S. Government catalog. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-409-7858 |
| Item Name | Tee,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 PREFORMED PACKING |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE |
| Surface Treatment Document and Classification | MIL-F-14072,E300,TY2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE |
| Connection Style | FLARED (TUBE) SECOND END |
| Connection Style | GASKET SEAL (BOSS) THIRD END |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Type | THREADED INTERNAL BOSS THIRD END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.312 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.312 INCHES SECOND END IN |
| Leg Length | 0.750 INCHES NOMINAL THIRD END IN |
| Leg Length | 1.750 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.187 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.500 INCHES FIRST END BULKHEAD IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Seat Angle | 37.0 DEGREES SECOND END |
| Specification/standard Data | 96906-MS24388 GOVERNMENT STANDARD |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A FIRST END A |
| Thread Class | 3A FIRST END BULKHEAD A |
| Thread Class | 3A SECOND END A |
| Thread Class | 3B THIRD END |
| Material | STEEL COMP 304 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
|---|---|
| AN783J5 | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| AN783J5 | 5/1 Secondary reference Hydro-Fitting Manufacturing Corporation |
| AN783J5 | 5/9 Secondary reference Crown Fitting Co Inc |
| MIL-F-5509 | 4/1 Identification reference U.S. Government activity |
| AN783J5 | 5/9 Secondary reference U.S. Government activity |
| AN783J5 | 5/1 Secondary reference Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply |
| AN783J5 | 5/1 Secondary reference Precision Form Rivet Inc |
| MS24388J5 | 2/2 Government specification standardization U.S. Government activity |
| AN783J5 | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| AN783J5 | 5/9 Secondary reference Collins Engineering Corp |
| AN783J5 | 5/1 Secondary reference Aerofit, Llc |
NSN 4730-00-409-7858 is a Tee,tube to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-409-7858: Furnished Items and Quantity: 1 PREFORMED PACKING; Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE; Surface Treatment Document and Classification: MIL-F-14072,E300,TY2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE; Connection Style: FLARED (TUBE) SECOND END. 28 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.