The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-398-7243, 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 19 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-398-7243 |
| Primary Part Number | 8C4OMXS |
| Item Name | Elbow,tube 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 |
| Furnished Items and Quantity | 1 PREFORMED PACKING |
| Flow Angle | 90.0 DEGREES |
| Thread Tolerance Class | 6H EXTERNAL SECOND END |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | FLARED (TUBE) FIRST END |
| Thread Pitch in Millimeters | 1.5 SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Nominal Outside Diameter Tube Accommodated | 12.0 MILLIMETERS FIRST END MM |
| Leg Length | 37.0 MILLIMETERS NOMINAL SECOND END MM |
| Leg Length | 44.6 MILLIMETERS NOMINAL FIRST END MM |
| Nominal Thread Size | 1.0 MILLIMETERS SECOND END MM |
| Nominal Thread Size | 0.375 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Thread Class | 2A SECOND END A |
| Thread Class | 2A FIRST END A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF FIRST END |
| Thread Series Designator | ISO S 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 |
|---|---|
| 4KK749 | Oshkosh Defense Llc (USA) |
| 8C4OMXS PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| 8C40MXS | Parker Hannifin France SAS (FRA) |
| 8C4OMXS | Parker Hannifin (australia) Pty. Limited (AUS) |
| Reference | Meaning |
|---|---|
| 8-C40X-S | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| 4KK749 | 5/9 Secondary reference Oshkosh Corp |
| 10315452 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 4730-01-398-7243 is a Elbow,tube 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 4730-01-398-7243 has 4 manufacturer part numbers on file: 4KK749 (Oshkosh Defense Llc), 8C4OMXS (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 8C40MXS (Parker Hannifin France SAS), 8C4OMXS (Parker Hannifin (australia) Pty. Limited).
Key specifications for 8C4OMXS: Furnished Items and Quantity: 1 PREFORMED PACKING; Flow Angle: 90.0 DEGREES; Thread Tolerance Class: 6H EXTERNAL SECOND END; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END. 19 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.