The Disk,rupturable, cataloged under National Stock Number 4820-01-557-4060, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fike Corporation. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-557-4060 |
| Primary Part Number | SK2913-1 |
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Fike Corporation |
| Status | ACTIVE |
| Disk Material | STEEL COMP 316 |
| Burst Pressure | 40.0 PRESSURE POUNDS PER SQUARE INCH GAGE |
| Burst Temperature | 72.0 FAHRENHEIT DEGF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4820-01-557-4060 is a Disk,rupturable, manufactured by Fike Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-557-4060 has 2 manufacturer part numbers on file: A9122-1 (Fike Corporation), SK2913-1 (Fike Corporation).
Key specifications for SK2913-1: Disk Material: STEEL COMP 316; Burst Pressure: 40.0 PRESSURE POUNDS PER SQUARE INCH GAGE; Burst Temperature: 72.0 FAHRENHEIT DEGF; End Item Identification: CVN REACTOR BOUNDRY AREA. 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.
NSN 4820-01-557-4060 has DEMIL Code Q. 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.