The Disk,rupturable, cataloged under National Stock Number 4820-01-213-8124, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Superior Valve Co. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Superior Valve Co (CAGE 58553); Tyco Fire Products Lp (CAGE 03670) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-213-8124 |
| Primary Part Number | P5970BM-16 |
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Superior Valve Co |
| 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 |
|---|---|
| P5970BM-16 PRIMARY | Superior Valve Co (USA) |
| 64550 | Tyco Fire Products Lp (USA) |
| Reference | Meaning |
|---|---|
| P5970BM-10 | 5/9 Secondary reference Superior Valve Co |
| PL64550N | D/9 Drawing number reference only Tyco Fire Products Lp |
| PL64550N ITEM 3 | 5/9 Secondary reference Tyco Fire Products Lp |
NSN 4820-01-213-8124 is a Disk,rupturable, manufactured by Superior Valve Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-213-8124 has 2 manufacturer part numbers on file: P5970BM-16 (Superior Valve Co), 64550 (Tyco Fire Products Lp).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-508-0971. Verify interchangeability with system specifications before substitution.
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.