The Elbow,hose to Boss, cataloged under National Stock Number 4730-01-119-0561, 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 Custom Hydraulic & Machine, Inc. Dba Custom Hydraulic & Machine Inc. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-119-0561 |
| Primary Part Number | CMC-4-5903-1/4-06 |
| Item Name | Elbow,hose to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Custom Hydraulic & Machine, Inc. Dba Custom Hydraulic & Machine Inc |
| Status | ACTIVE |
| 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 | 0.380 INCHES FIRST END IN |
| Nominal Outside Diameter Hose Accommodated | 1.000 INCHES FIRST END IN |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Connection Type | THREADED EXTERNAL HOSE GRIPPING FIRST END |
| Material Document and Classification | MIL-T-1368,TY 1,COND 1 MIL SPEC SINGLE MATERIAL RESPONSE ELBOW |
| Material Document and Classification | QQ-N-286,CL-A OR B FED SPEC SINGLE MATERIAL RESPONSE BOLT |
| Material Document and Classification | QQ-N-286,CL-A OR B FED SPEC SINGLE MATERIAL RESPONSE SOCKET |
| Material Document and Classification | QQ-N-288,CL-A OR B FED SPEC SINGLE MATERIAL RESPONSE NIPPLE |
| Operating Pressure | 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.430 INCHES NOMINAL SECOND END IN |
| Leg Length | 3.200 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 1.187 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 |
| Part Number | Manufacturer |
|---|---|
| CMC-4-5903-1/4-06 PRIMARY | Custom Hydraulic & Machine, Inc. Dba Custom Hydraulic & Machine Inc (USA) |
| FC7182-0406-4 PRIMARY | Danfoss Power Solutions II, Llc (USA) |
| Reference | Meaning |
|---|---|
| MIL-F-24787 | 4/1 Identification reference U.S. Government activity |
| MIL-H-24135 | 5/9 Secondary reference U.S. Government activity |
| MIL-F-24787/3 GR XI TY CL | 5/1 Secondary reference U.S. Government activity |
| 19-02-1301 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-119-0561 is a Elbow,hose to Boss, manufactured by Custom Hydraulic & Machine, Inc. Dba Custom Hydraulic & Machine Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-119-0561 has 2 manufacturer part numbers on file: CMC-4-5903-1/4-06 (Custom Hydraulic & Machine, Inc. Dba Custom Hydraulic & Machine Inc), FC7182-0406-4 (Danfoss Power Solutions II, Llc).
4 possible matches (shared part number, not a government interchangeability claim): 4730-01-119-1161, 4730-01-146-8859, 4730-01-192-0417. Verify interchangeability with system specifications before substitution.
Key specifications for CMC-4-5903-1/4-06: 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: 0.380 INCHES FIRST END IN. 20 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.