The Coupling Half,self-Sealing, cataloged under National Stock Number 4730-01-201-2709, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-201-2709 |
| Item Name | Coupling Half,self-Sealing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | BOSS GASKET SEAL ALL ENDS |
| Connection Type | THREADED INTERNAL BOSS FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 1.594 INCHES ALL ENDS IN |
| Thread Quantity Per Inch | 20 ALL ENDS |
| Material | STEEL BODY |
| Thread Series Designator | UNS ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 845-2445071ITEM15 | 5/1 Secondary reference U.S. Government activity |
| 503-4556027ITEM15 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 5400-S5-16 | 5/1 Secondary reference Danfoss Power Solutions II, Llc |
| 5400-S5-16 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| 2620-219X1 PC162 | 5/1 Secondary reference U.S. Government activity |
| 845-1889863 PC162 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4730-01-201-2709 is a Coupling Half,self-Sealing, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-201-2709: Connection Style: BOSS GASKET SEAL ALL ENDS; Connection Type: THREADED INTERNAL BOSS FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF; Overall Length: 2.370 INCHES NOMINAL IN. 8 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.