The Elbow,pipe to Boss, cataloged under National Stock Number 4730-01-660-6043, 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 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-660-6043 |
| Primary Part Number | 4WELO-WLNLS-E0540 |
| Item Name | Elbow,pipe to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| Status | ACTIVE |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS |
| Nominal Outside Diameter Hose Accommodated | 0.5625 INCHES SECOND END IN |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Style Designator | ELBOW |
| Operating Pressure | 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Outside Diameter | 0.25 INCHES ALL ENDS IN |
| Media for Which Designed | FLUID FIRST RESPONSE |
| Media for Which Designed | GAS SECOND RESPONSE |
| Thread Class | UN/UNF-2A ALL ENDS A |
| Material | STEEL BODY |
| 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 |
|---|---|
| 4WELO-WLNLS-E0540 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
NSN 4730-01-660-6043 is a Elbow,pipe to Boss, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-660-6043 has 1 manufacturer part number on file: 4WELO-WLNLS-E0540 (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).
Key specifications for 4WELO-WLNLS-E0540: Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS; Nominal Outside Diameter Hose Accommodated: 0.5625 INCHES SECOND END IN; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Style Designator: ELBOW. 10 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.