The Tee,tube, cataloged under National Stock Number 4730-01-701-1345, 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 Sae International Dba Sae International. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-701-1345 |
| Primary Part Number | AS85421/4T040404 |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Nominal Width Across Flats | 0.500 INCHES CENTER BULKHEAD IN |
| Connection Style | GASKET SEAL (TUBE) SECOND END |
| Connection Style | GASKET SEAL (TUBE) FIRST END |
| Connection Style | SWIVEL NUT, GASKET SEAL (TUBE) INLET |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE INLET |
| Style Designator | TEE |
| Material Document and Classification | AMS4928 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE TEE |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Operating Pressure | 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 0.684 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.684 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.014 INCHES NOMINAL INLET IN |
| Specification/standard Data | 0U583-AS8542/4 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nominal Outside Diameter | 0.250 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.250 INCHES SECOND END IN |
| Nominal Outside Diameter | 0.565 INCHES INLET IN |
| Media for Which Designed | AERONAUTICAL FLUID SINGLE RESPONSE |
| Thread Quantity Per Inch | 24 ALL ENDS |
| Material | TITANIUM ALLOY TEE |
| Thread Series Designator | UNJS SECOND END |
| Thread Series Designator | UNJS 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 |
|---|---|
| AS85421/4T040404 PRIMARY | Sae International Dba Sae International (USA) |
| SAE AS85421/4T040404 | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS85421 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 4730-01-701-1345 is a Tee,tube, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-701-1345 has 2 manufacturer part numbers on file: AS85421/4T040404 (Sae International Dba Sae International), SAE AS85421/4T040404 (Sae International Dba Sae International).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-701-1433. Verify interchangeability with system specifications before substitution.
Key specifications for AS85421/4T040404: Nominal Width Across Flats: 0.500 INCHES CENTER BULKHEAD IN; Connection Style: GASKET SEAL (TUBE) SECOND END; Connection Style: GASKET SEAL (TUBE) FIRST END; Connection Style: SWIVEL NUT, GASKET SEAL (TUBE) INLET. 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.