The Elbow,flange to Tube, cataloged under National Stock Number 4730-00-075-1358, 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 Alamo Aircraft, Ltd.. Government technical data includes 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-075-1358 |
| Primary Part Number | 481264 |
| Item Name | Elbow,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Alamo Aircraft, Ltd. |
| Status | ACTIVE |
| Flange Shape | TRIANGULAR WITH HOLES SECOND END |
| Flange Face Design | RAISED WITH CURVE AND RADIUS SECOND END |
| Connection Style | FLARED (TUBE) FIRST END |
| Bolt Circle Nominal Diameter | 2.000 INCHES SECOND END IN |
| Material Document and Classification | AMS4135 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.281 INCHES SECOND END IN |
| Leg Length | 1.720 INCHES MINIMUM AND 1.750 INCHES MAXIMUM FIRST END IN |
| Leg Length | 1.970 INCHES MINIMUM AND 2.000 INCHES MAXIMUM SECOND END IN |
| Nominal Thread Size | 1.188 INCHES FIRST END IN |
| Seat Angle | 25.0 DEGREES FIRST END |
| Bolt Hole Quantity | 3 SECOND END |
| Thread Class | 3A FIRST END A |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNS FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 481264 PRIMARY | Alamo Aircraft, Ltd. (USA) |
| Reference | Meaning |
|---|---|
| 481264 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 481264 | 5/9 Secondary reference National Aerospace Corp |
| 481264 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 4730-00-075-1358 is a Elbow,flange to Tube, manufactured by Alamo Aircraft, Ltd., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-075-1358 has 1 manufacturer part number on file: 481264 (Alamo Aircraft, Ltd.).
Key specifications for 481264: Flange Shape: TRIANGULAR WITH HOLES SECOND END; Flange Face Design: RAISED WITH CURVE AND RADIUS SECOND END; Connection Style: FLARED (TUBE) FIRST END; Bolt Circle Nominal Diameter: 2.000 INCHES SECOND END IN. 15 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.