The Disk,rupturable, cataloged under National Stock Number 4820-01-375-7618, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fike Corporation. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003); Fike Corporation (CAGE 06370) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-375-7618 |
| Primary Part Number | 1/2 P-ST-476 |
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Fike Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 1426AS135-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 1/2 P-ST-476 PRIMARY | Fike Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1426AS135 | 7/1 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4820-01-375-7618 is a Disk,rupturable, manufactured by Fike Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-375-7618 has 2 manufacturer part numbers on file: 1426AS135-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 1/2 P-ST-476 (Fike Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-376-2663, 4820-01-376-2664. 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.