The Elbow,tube to Boss, cataloged under National Stock Number 4730-00-007-3351, 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 Omark Industries Inc Hydraulic Materials Handling Div. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-007-3351 |
| Primary Part Number | 38-403-083 |
| Item Name | Elbow,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Omark Industries Inc Hydraulic Materials Handling Div |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 LOCKNUT AND 1 PREFORMED PACKING AND 1 FLAT WASHER |
| Flow Angle | 90.0 DEGREES |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Style | DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Leg Length | 1.250 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.450 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Surface Treatment | PASSIVATE INSIDE |
| Surface Treatment | PASSIVATE OUTSIDE |
| Thread Class | 3A FIRST END A |
| Thread Class | 3A SECOND END A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF FIRST END |
| Thread Series Designator | UNF 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 |
|---|---|
| 38-403-083 PRIMARY | Omark Industries Inc Hydraulic Materials Handling Div (USA) |
| Reference | Meaning |
|---|---|
| 5527X8 | 5/9 Secondary reference Dana Corp Weatherhead Div |
| 5527X8 | C/1 Advisory reference — outside the item-of-supply concept Danfoss Power Solutions II, Llc |
NSN 4730-00-007-3351 is a Elbow,tube to Boss, manufactured by Omark Industries Inc Hydraulic Materials Handling Div, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-007-3351 has 1 manufacturer part number on file: 38-403-083 (Omark Industries Inc Hydraulic Materials Handling Div).
Key specifications for 38-403-083: Furnished Items and Quantity: 1 LOCKNUT AND 1 PREFORMED PACKING AND 1 FLAT WASHER; Flow Angle: 90.0 DEGREES; Connection Style: FLARED (TUBE) FIRST END; Connection Style: DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END. 17 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.