The Disk,rupturable, cataloged under National Stock Number 4820-01-526-7417, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Zook Enterprises, Llc Div Zook. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (CAGE 76371); Zook Enterprises, Llc Div Zook (CAGE 67158); U S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-526-7417 |
| Primary Part Number | DM057DU-1 |
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Zook Enterprises, Llc Div Zook |
| Status | ACTIVE |
| 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 |
|---|---|
| 2605943000 | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA) |
| DM057DU-1 PRIMARY | Zook Enterprises, Llc Div Zook (USA) |
| 12511386 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| SC40273A0009 | 5/9 Secondary reference Continental Disc Corporation, Llc |
| SC40273A0004 | 5/9 Secondary reference Continental Disc Corporation, Llc |
| SC 40273 | 5/9 Secondary reference Continental Disc Corporation, Llc |
NSN 4820-01-526-7417 is a Disk,rupturable, manufactured by Zook Enterprises, Llc Div Zook, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-526-7417 has 3 manufacturer part numbers on file: 2605943000 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc), DM057DU-1 (Zook Enterprises, Llc Div Zook), 12511386 (U S Army Tank Automotive Command Amsta-Im-Mm).
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.