The Disk,rupturable, cataloged under National Stock Number 4820-01-326-8992, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fike Corporation. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-326-8992 |
| Primary Part Number | A6029-1 |
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Fike Corporation |
| Status | ACTIVE |
| Disk Material | NICKEL |
| Burst Pressure | 400.0 PRESSURE POUNDS PER SQUARE INCH GAGE |
| Cross-Sectional Shape | FLAT |
| Disk Size | 0.610 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6277228 | Naval Sea Systems Command (USA) |
| A6029-1 PRIMARY | Fike Corporation (USA) |
| JR-0-0020-045 PRIMARY | Bs&b Safety Systems Llc (USA) |
NSN 4820-01-326-8992 is a Disk,rupturable, manufactured by Fike Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-326-8992 has 3 manufacturer part numbers on file: 6277228 (Naval Sea Systems Command), A6029-1 (Fike Corporation), JR-0-0020-045 (Bs&b Safety Systems Llc).
Key specifications for A6029-1: Disk Material: NICKEL; Burst Pressure: 400.0 PRESSURE POUNDS PER SQUARE INCH GAGE; Cross-Sectional Shape: FLAT; Special Features: BODY MATL CRES STEEL;FEEDWATER INJECTION. 4 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.
NSN 4820-01-326-8992 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.