The Disk,rupturable, cataloged under National Stock Number 4820-01-008-3746, 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 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-008-3746 |
| Primary Part Number | 123 |
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Fike Corporation |
| Status | ACTIVE |
| Disk Material | STEEL |
| Burst Pressure | 4625.0 PRESSURE POUNDS PER SQUARE INCH GAGE |
| Cross-Sectional Shape | CONCAVE |
| Disk Size | 0.800 INCHES IN |
| 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 |
|---|---|
| 123 PRIMARY | Fike Corporation (USA) |
| Reference | Meaning |
|---|---|
| 65362 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 65362 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
| 65362 | 5/9 Secondary reference Drs Environmental Systems Inc |
NSN 4820-01-008-3746 is a Disk,rupturable, manufactured by Fike Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-008-3746 has 1 manufacturer part number on file: 123 (Fike Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-151-8248. Verify interchangeability with system specifications before substitution.
Key specifications for 123: Disk Material: STEEL; Burst Pressure: 4625.0 PRESSURE POUNDS PER SQUARE INCH GAGE; Cross-Sectional Shape: CONCAVE; Special Features: THICKNESS:0.006 IN.NOM IN. 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.
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.