The Tee,tube to Boss, cataloged under National Stock Number 4730-00-922-9476, 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28 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-922-9476 |
| 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-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | GASKET SEAL (BOSS) THIRD END |
| Connection Style | FLARELESS (TUBE) FIRST END |
| Connection Type | THREADED INTERNAL BOSS THIRD END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.156 INCHES MINIMUM AND 1.203 INCHES MAXIMUM THIRD END IN |
| Leg Length | 1.500 INCHES MINIMUM AND 1.547 INCHES MAXIMUM SECOND END IN |
| Leg Length | 2.250 INCHES MINIMUM AND 2.297 INCHES MAXIMUM FIRST END IN |
| Nominal Thread Size | 0.875 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.875 INCHES FIRST END BULKHEAD IN |
| Seat Angle | 12.0 DEGREES FIRST END |
| Specification/standard Data | 96906-MS21910 GOVERNMENT STANDARD |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | PASSIVATE INSIDE |
| Surface Treatment | PASSIVATE OUTSIDE |
| Media for Which Designed | AERONAUTICAL FLUID SINGLE RESPONSE |
| 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 |
|---|---|
| AS18280 | 5/9 Secondary reference U.S. Government activity |
| AS21910 | 5/9 Secondary reference U.S. Government activity |
| MS21910J10 | C/1 Advisory reference — outside the item-of-supply concept Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| MS21910J10 | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| D10176-10 | C/1 Advisory reference — outside the item-of-supply concept Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| MS21910J10 | C/1 Advisory reference — outside the item-of-supply concept Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| MS21910J10 | 5/9 Secondary reference U.S. Government activity |
| MS21910-10C | 5/9 Secondary reference U.S. Government activity |
| MS21910J10 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-00-922-9476 is a Tee,tube to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4730-00-993-0054, 4730-01-153-8339. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-922-9476: Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: GASKET SEAL (BOSS) THIRD END; Connection Style: FLARELESS (TUBE) FIRST 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.