The Disk,rupturable, cataloged under National Stock Number 4820-01-157-1674, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Zwick Energy Researach Organization Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-157-1674 |
| Primary Part Number | A046902006 |
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Zwick Energy Researach Organization Inc |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| A046902006 PRIMARY | Zwick Energy Researach Organization Inc (USA) |
| Reference | Meaning |
|---|---|
| 822239-28 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-157-1674 is a Disk,rupturable, manufactured by Zwick Energy Researach Organization Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-157-1674 has 1 manufacturer part number on file: A046902006 (Zwick Energy Researach Organization Inc).
Key specifications for A046902006: Criticality Code Justification: FEAT; Special Features: WEAPON SYSTEM ESSENTIAL; End Item Identification: 3655010899563,NITROGEN SERVICING UNIT. 1 specification is 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.