The Elbow,flange to Hose, cataloged under National Stock Number 4730-01-075-6576, 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 21 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-075-6576 |
| Item Name | Elbow,flange to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | ROUND FIRST END |
| Furnished Items and Quantity | 1 HOSE COUPLING NUT |
| Flow Angle | 90.0 DEGREES |
| Flange Face Design | PLAIN WITH GASKET GROOVE FIRST END |
| Surface Treatment Document and Classification | QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | GRIPPING NIPPLE (NOSE) SECOND END |
| Nominal Inside Diameter Hose Accommodated | 0.750 INCHES SECOND END IN |
| Nominal Outside Diameter Hose Accommodated | 1.250 INCHES SECOND END IN |
| Connection Type | THREADED EXTERNAL HOSE GRIPPING SECOND END |
| Connection Type | FLANGE FIRST END |
| Operating Pressure | 2250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 4.500 INCHES NOMINAL SECOND END IN |
| Leg Length | 2.130 INCHES NOMINAL FIRST END IN |
| Specification/standard Data | 81349-MIL-F-52525C GOVERNMENT SPECIFICATION |
| Maximum Operating Temp | 212.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nondefinitive Spec/std Data | B TYPE |
| Nominal Outside Diameter | 1.750 INCHES FIRST END IN |
| Surface Treatment | ZINC OVERALL |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Material | STEEL OR IRON OVERALL |
| Nominal Thickness | 0.315 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 |
| Reference | Meaning |
|---|---|
| M52525/12-12-16J | 2/2 Government specification standardization U.S. Government activity |
| 94-4790-16-12 | 5/9 Secondary reference Danfoss Power Solutions II, Llc |
| 21930-12-12-16 | 5/1 Secondary reference U.S. Government activity |
| M52525/12-12-16 | 5/9 Secondary reference U.S. Government activity |
| MIL-F-52525 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-52525/12 | 4/1 Identification reference U.S. Government activity |
NSN 4730-01-075-6576 is a Elbow,flange to Hose, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-075-6577, 4730-01-075-7319. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-075-6576: Flange Shape: ROUND FIRST END; Furnished Items and Quantity: 1 HOSE COUPLING NUT; Flow Angle: 90.0 DEGREES; Flange Face Design: PLAIN WITH GASKET GROOVE FIRST END. 21 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.