The Elbow,hose to Boss, cataloged under National Stock Number 4730-01-020-8441, 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 18 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-020-8441 |
| Item Name | Elbow,hose to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 4 BOLT AND 2 SOCKET |
| Flow Angle | 90.0 DEGREES |
| Connection Style | GRIPPING NIPPLE (NOSE) FIRST END |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Nominal Inside Diameter Hose Accommodated | 1.500 INCHES FIRST END IN |
| Nominal Outside Diameter Hose Accommodated | 2.250 INCHES FIRST END IN |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Connection Type | THREADED EXTERNAL HOSE GRIPPING FIRST END |
| Material Document and Classification | QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 3.550 INCHES NOMINAL SECOND END IN |
| Leg Length | 5.960 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 3.062 INCHES SECOND END IN |
| Maximum Operating Temp | 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Class | 2A SECOND END A |
| Thread Quantity Per Inch | 12 SECOND END |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | UN 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 |
| Reference | Meaning |
|---|---|
| FC7182-4 | 5/9 Secondary reference Danfoss Power Solutions II, Llc |
| MIL-F-24787/3-TYCL-GPXI-24 | 5/9 Secondary reference U.S. Government activity |
| MIL-H-24135 | 5/9 Secondary reference U.S. Government activity |
| MIL-F-24787 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-24787/3 | 4/1 Identification reference U.S. Government activity |
| M24787/3,TY-CL,GR-XI,-24 1-1/4 | 2/2 Government specification standardization U.S. Government activity |
| CMC-4-5903-1-1/2-24 | 5/1 Secondary reference Custom Hydraulic & Machine, Inc. Dba Custom Hydraulic & Machine Inc |
| MIL-F-24787/3 | 5/9 Secondary reference U.S. Government activity |
| FC7182-2424-4 | 5/1 Secondary reference Danfoss Power Solutions II, Llc |
NSN 4730-01-020-8441 is a Elbow,hose to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-192-0417. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-020-8441: Furnished Items and Quantity: 4 BOLT AND 2 SOCKET; Flow Angle: 90.0 DEGREES; Connection Style: GRIPPING NIPPLE (NOSE) FIRST END; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND 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.