The Elbow,flange to Hose, cataloged under National Stock Number 4730-01-021-7529, 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 Rolls-Royce Solutions America Inc. Government technical data includes 22 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. 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 | 4730-01-021-7529 |
| Primary Part Number | 5100799 |
| Item Name | Elbow,flange to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Flow Angle | 45.0 DEGREES |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | BEADED (HOSE) SECOND END |
| Connection Style | PLAIN (PIPE) INLET |
| Nominal Length | 11.500 INCHES FIRST END IN |
| Nominal Inside Diameter Hose Accommodated | 3.500 INCHES SECOND END IN |
| Inlet Location | RIGHT-HAND SIDE SINGLE INLET |
| Connection Type | THREADED INTERNAL PIPE INLET |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.406 INCHES FIRST END IN |
| Leg Length | 0.250 INCHES NOMINAL ALL ENDS IN |
| Nominal Thread Size | 0.125 INCHES INLET IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 2.562 INCHES FIRST END IN |
| Bolt Hole Quantity | 6 FIRST END |
| Nominal Width | 3.453 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 5.250 INCHES FIRST END IN |
| Material | ALUMINUM ALLOY OVERALLUNABLE TO DECODE |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | NPT INLET |
| Nominal Thickness | 0.438 INCHES FIRST END IN |
| 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 |
|---|---|
| 5100799 PRIMARY | Rolls-Royce Solutions America Inc (USA) |
NSN 4730-01-021-7529 is a Elbow,flange to Hose, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-021-7529 has 1 manufacturer part number on file: 5100799 (Rolls-Royce Solutions America Inc).
1 possible match (shared part number, not a government interchangeability claim): 4910-01-647-8488. Verify interchangeability with system specifications before substitution.
Key specifications for 5100799: Flange Shape: RECTANGULAR WITH HOLES FIRST END; Flow Angle: 45.0 DEGREES; Flange Face Design: PLAIN FIRST END; Connection Style: BEADED (HOSE) SECOND END. 22 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.