The Tee,pipe to Tube, cataloged under National Stock Number 4730-00-951-3985, 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 30 specifications, cited from the U.S. Government catalog. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-951-3985 |
| Item Name | Tee,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 TUBE COUPLING NUT W/SLEEVE |
| Surface Treatment Document and Classification | QQ-P-35,TYPE 1 OR 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Style | FLARED (TUBE) THIRD END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE THIRD END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Material Document and Classification | 66,300 SERIES FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES THIRD END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.090 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.060 INCHES NOMINAL THIRD END IN |
| Leg Length | 1.060 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.562 INCHES THIRD END IN |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Seat Angle | 37.0 DEGREES THIRD END |
| Specification/standard Data | 96906-MS51511 GOVERNMENT STANDARD AND 81349-MIL-F-18866 GOVERNMENT SPECIFICATION AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 5C FIGURE |
| Surface Treatment | PASSIVATE OUTSIDE |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Thread Class | 2A FIRST END A |
| Thread Class | 2A THIRD END A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | NPTF SECOND END |
| Thread Series Designator | UNF THIRD END |
| Thread Series Designator | UNF FIRST 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 |
|---|---|
| J514 | 5/1 Secondary reference Sae International Dba Sae International |
| J514 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-18866 | 4/1 Identification reference U.S. Government activity |
| 6-4-6 070424SA | 5/1 Secondary reference Sae International Dba Sae International |
| 6RBTXSS | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters |
| 6RBTXSS | 5/1 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| 6RTX-SS | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters |
| 6RTX-SS | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MS51511B6S | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MS51511A6S | 2/2 Government specification standardization U.S. Government activity |
| 6RBTXSS | 5/9 Secondary reference U.S. Government activity |
| 6-4-6 070424SA | 5/9 Secondary reference U.S. Government activity |
| MIL-F-18866 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-951-3985 is a Tee,pipe to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-350-3764. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-951-3985: Furnished Items and Quantity: 2 TUBE COUPLING NUT W/SLEEVE; Surface Treatment Document and Classification: QQ-P-35,TYPE 1 OR 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED (TUBE) FIRST END; Connection Style: FLARED (TUBE) THIRD END. 30 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.