The Coupling Assy, cataloged under National Stock Number 4730-01-644-9737, 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 3 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-644-9737 |
| Item Name | Coupling Assy |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Extra Long Reference Number | 2283513-PUMP END,2283513- MOTOR END, 2X 1966886, 190962,2 |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| LINE 2) -MOTOR END,2X 1966886, | 5/1 Secondary reference Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division |
| 2283513-PUMP END,2283513- MOTOR- | 3/1 Design control — primary reference Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division |
| LINE 4) 1966159 | 5/1 Secondary reference Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division |
| LINE 1) 2283513-PUMP END,2283513 | 5/1 Secondary reference Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division |
| LINE 3) 1960962,2296515,1966183, | 5/1 Secondary reference Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division |
NSN 4730-01-644-9737 is a Coupling Assy, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-644-9737: Criticality Code Justification: ZZZY; Extra Long Reference Number: 2283513-PUMP END,2283513- MOTOR END, 2X 1966886, 190962,2; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 3 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.