The Coupling,pipe, cataloged under National Stock Number 4730-01-206-4820, 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 Oshkosh Defense Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-206-4820 |
| Primary Part Number | 2228990 |
| Item Name | Coupling,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 2.000 INCHES ALL ENDS IN |
| Connection Style | GROOVED (PIPE) ALL ENDS |
| Nominal Overall Length | 12.000 INCHES IN |
| Connection Type | UNTHREADED EXTERNAL PIPE ALL ENDS |
| Style Designator | GROOVED BOTH ENDS |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 30 ALL ENDS |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| 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 |
|---|---|
| 2228990 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 45A396 | 5/9 Secondary reference C Systems Llc Dba Craig Systems Dba Eastern Technologies |
| 2228990 | 5/9 Secondary reference Oshkosh Corp |
| 2CR699 | 5/9 Secondary reference Oshkosh Corp |
NSN 4730-01-206-4820 is a Coupling,pipe, manufactured by Oshkosh Defense Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-206-4820 has 1 manufacturer part number on file: 2228990 (Oshkosh Defense Llc).
Key specifications for 2228990: Nominal Pipe Size Accommodated: 2.000 INCHES ALL ENDS IN; Connection Style: GROOVED (PIPE) ALL ENDS; Nominal Overall Length: 12.000 INCHES IN; Connection Type: UNTHREADED EXTERNAL PIPE ALL ENDS. 7 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.