The Tee,tube, cataloged under National Stock Number 4730-00-451-7958, 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 23 specifications, cited from the U.S. Government catalog. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-451-7958 |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 3 TUBE COUPLING NUT W/SLEEVE AND 1 BULKHEAD NUT |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED (TUBE) ALL ENDSFLARED (TUBE) ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDSTHREADED EXTERNAL TUBE ALL ENDS |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES ALL ENDS IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.250 INCHES NOMINAL SECOND END1.250 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.360 INCHES NOMINAL THIRD END1.360 INCHES NOMINAL THIRD END IN |
| Leg Length | 2.110 INCHES NOMINAL FIRST END2.110 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.750 INCHES ALL ENDS0.750 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.750 INCHES FIRST END BULKHEAD0.750 INCHES FIRST END BULKHEAD IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Specification/standard Data | 96906-MS51516 GOVERNMENT STANDARD |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | CADMIUM OVERALL |
| Media for Which Designed | HYDRAULIC FLUID SECOND RESPONSE |
| Media for Which Designed | HYDRAULIC FLUID SECOND RESPONSEAIR FIRST RESPONSE |
| Thread Class | 2A ALL ENDS2A ALL ENDS A |
| Thread Class | 2A FIRST END BULKHEAD2A FIRST END BULKHEAD A |
| Material | STEEL COMP 12L14 OVERALL |
| Thread Series Designator | UNF FIRST END BULKHEAD |
| Thread Series Designator | UNF FIRST END BULKHEADUNF 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 |
|---|---|
| 203008-8-8S | 5/1 Secondary reference Danfoss Power Solutions II, Llc |
| 8WJJBTXS | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters |
| 1934290 | C/1 Advisory reference — outside the item-of-supply concept Oshkosh Defense Llc |
| MS51516A8 | 2/2 Government specification standardization U.S. Government activity |
| 8WJJBTXS | 5/1 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| MIL-DTL-18866 | 4/1 Identification reference U.S. Government activity |
| MS51516B8 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 8 WJJTX-WLN-S | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 8WJJBTXS | 5/9 Secondary reference U.S. Government activity |
| 8WJJTX-S/8WLNSC | C/1 Advisory reference — outside the item-of-supply concept Parker Hannifin Canada Div Fluid Connectors Canada |
| 8 WJJTX-WLN-S | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| 1934290 | 5/9 Secondary reference Oshkosh Corp |
NSN 4730-00-451-7958 is a Tee,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): 4730-01-339-7323. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-451-7958: Furnished Items and Quantity: 3 TUBE COUPLING NUT W/SLEEVE AND 1 BULKHEAD NUT; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED (TUBE) ALL ENDSFLARED (TUBE) ALL ENDS; Connection Type: THREADED EXTERNAL TUBE ALL ENDSTHREADED EXTERNAL TUBE ALL ENDS. 23 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.