The Elbow,hose, cataloged under National Stock Number 4730-00-287-1091, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-287-1091 |
| Item Name | Elbow,hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flow Angle | 45.0 DEGREES |
| Connection Style | BEADED (HOSE) ALL ENDS |
| Nominal Inside Diameter Hose Accommodated | 0.750 INCHES ALL ENDS IN |
| Connection Type | UNTHREADED EXTERNAL HOSE ALL ENDS |
| Leg Length | 1.765 INCHES NOMINAL SECOND END IN |
| Leg Length | 2.703 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 1.062 INCHES FIRST END BULKHEAD IN |
| Specification/standard Data | 88044-AN846 GOVERNMENT STANDARD AND 81343-AS4843 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | ANODIZE INSIDE |
| Surface Treatment | ANODIZE OUTSIDE |
| Thread Class | 3A FIRST END BULKHEAD A |
| Thread Quantity Per Inch | 12 FIRST END BULKHEAD |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST END BULKHEAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AS4843 | 5/9 Secondary reference U.S. Government activity |
| AN846-12D | 5/1 Secondary reference Aerofit, Llc |
| AN846-12D | 5/1 Secondary reference Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply |
| AS4843 | 5/1 Secondary reference Sae International Dba Sae International |
| MIL-F-5509 | 5/9 Secondary reference U.S. Government activity |
| AN846-12D | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| AN846-12D | 5/9 Secondary reference Collins Engineering Corp |
| AN846-12D | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| AN846-12D | 5/9 Secondary reference Crown Fitting Co Inc |
| AN846-12D | 2/2 Government specification standardization U.S. Government activity |
| AN846-12D | 5/1 Secondary reference Hydro-Fitting Manufacturing Corporation |
| AN846-12D | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| SAE-AS4843 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 4730-00-287-1091 is a Elbow,hose, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-00-640-0339. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-287-1091: Flow Angle: 45.0 DEGREES; Connection Style: BEADED (HOSE) ALL ENDS; Nominal Inside Diameter Hose Accommodated: 0.750 INCHES ALL ENDS IN; Connection Type: UNTHREADED EXTERNAL HOSE ALL ENDS. 14 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.