The Elbow,tube, cataloged under National Stock Number 4730-01-374-4661, 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 Aerofit, Llc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-374-4661 |
| Primary Part Number | 4PHS231-04 |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Aerofit, Llc |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Surface Treatment Document and Classification | AMS2486 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | PLAIN (TUBE) SECOND END |
| Connection Style | PLAIN (TUBE) FIRST END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Material Document and Classification | AMS4965 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Operating Pressure | 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 0.898 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.939 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.437 INCHES SECOND END IN |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | PHOSPHATE FLUORIDE OVERALL |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Thread Class | 3A SECOND END A |
| Material | TITANIUM ALLOY UNS R54520 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND 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 |
|---|---|
| AP3127T04 | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| 4PHS231-04 PRIMARY | Aerofit, Llc (USA) |
| AAC4231-04 | Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply (USA) |
| Reference | Meaning |
|---|---|
| 7D0430T04 | 5/2 Secondary reference U.S. Government activity |
| 7D430TO4 | 5/9 Secondary reference U.S. Government activity |
| 7D0430A | D/9 Drawing number reference only U.S. Government activity |
| 4PHS231-04 | 5/9 Secondary reference Te Connectivity Corporation Dba Raychem Product Division |
NSN 4730-01-374-4661 is a Elbow,tube, manufactured by Aerofit, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-374-4661 has 3 manufacturer part numbers on file: AP3127T04 (Sps Technologies, Llc Dba Airdrome Precision Components), 4PHS231-04 (Aerofit, Llc), AAC4231-04 (Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply).
Key specifications for 4PHS231-04: Flow Angle: 90.0 DEGREES; Surface Treatment Document and Classification: AMS2486 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Connection Style: PLAIN (TUBE) SECOND END; Connection Style: PLAIN (TUBE) FIRST END. 18 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.