The Disk,rupturable, cataloged under National Stock Number 4820-00-629-2437, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Michigan Dynamics Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-629-2437 |
| Primary Part Number | 300045 |
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Michigan Dynamics Inc |
| Status | ACTIVE |
| Disk Material | STEEL CORROSION RESISTING |
| Cross-Sectional Shape | CONCAVE |
| Disk Size | 1.750 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 |
|---|---|
| 300045 PRIMARY | Michigan Dynamics Inc (USA) |
| Reference | Meaning |
|---|---|
| 300045 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-629-2437 is a Disk,rupturable, manufactured by Michigan Dynamics Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-629-2437 has 1 manufacturer part number on file: 300045 (Michigan Dynamics Inc).
4 possible matches (shared part number, not a government interchangeability claim): 2520-00-692-6182, 4720-01-241-4130, 4820-01-301-3698. Verify interchangeability with system specifications before substitution.
Key specifications for 300045: Disk Material: STEEL CORROSION RESISTING; Cross-Sectional Shape: CONCAVE; Special Features: THICKNESS:0.187 IN.NOM;FSC APPLICATION DATA:GUIDED MISSILE COMPONENT IN; Disk Size: 1.750 INCHES IN. 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.
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.