The Tee,pipe to Tube, cataloged under National Stock Number 4730-01-137-4481, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Fluid Line Products Inc. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-137-4481 |
| Primary Part Number | 30412404-4-4-4SS |
| Item Name | Tee,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Fluid Line Products Inc |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) THIRD END |
| Connection Style | SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Connection Type | THREADED EXTERNAL PIPE THIRD END |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Operating Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 0.880 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.160 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.090 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Nominal Thread Size | 0.250 INCHES THIRD END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Maximum Operating Temp | 165.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2B FIRST END |
| Test Data Document | 18876-10159214 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Material | STEEL COMP 304 OR STEEL COMP 316 OVERALL |
| Thread Series Designator | NPTF SECOND END |
| Thread Series Designator | NPTF 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 |
| Part Number | Manufacturer |
|---|---|
| 30412404-4-4-4SS PRIMARY | Fluid Line Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 10159214 | 5/1 Secondary reference Fluid Line Products Inc |
| 10159214 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 4730-01-137-4481 is a Tee,pipe to Tube, manufactured by Fluid Line Products Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-137-4481 has 1 manufacturer part number on file: 30412404-4-4-4SS (Fluid Line Products Inc).
1 possible match (shared part number, not a government interchangeability claim): 2995-01-139-7062. Verify interchangeability with system specifications before substitution.
Key specifications for 30412404-4-4-4SS: Connection Style: PLAIN (PIPE) THIRD END; Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END; Connection Style: PLAIN (PIPE) SECOND END; Connection Type: THREADED EXTERNAL PIPE THIRD END. 24 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.