The Coupler,quick Disco, cataloged under National Stock Number 4921-01-197-9804, is classified within Federal Supply Class 4921 (Torpedo Maintenance, Repair, and Checkout Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Coupler,quick Disco |
| FSC / FSG | 4921 — Torpedo Maintenance, Repair, and Checkout Specialized Equipment (FSG 49) |
| Manufacturers | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division (CAGE 78JK3) |
| Parameter | Value |
|---|---|
| NSN | 4921-01-197-9804 |
| Primary Part Number | 25CW |
| Item Name | Coupler,quick Disco |
| FSC / FSG | 4921 / 49 — Torpedo Maintenance, Repair, and Checkout Specialized Equipment |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 25CW PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division (USA) |
| Reference | Meaning |
|---|---|
| 25CW | 5/9 Secondary reference U.S. Government activity |
| 25CW | 3/9 Design control — primary reference U.S. Government activity |
NSN 4921-01-197-9804 is a Coupler,quick Disco, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division, classified under FSC 4921, Torpedo Maintenance, Repair, and Checkout Specialized Equipment. Status: active.
NSN 4921-01-197-9804 has 1 manufacturer part number on file: 25CW (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4921-01-197-9804 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.