The Collar,valve Disk, cataloged under National Stock Number 4820-01-330-3735, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-330-3735 |
| Item Name | Collar,valve Disk |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| 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 |
| Reference | Meaning |
|---|---|
| 1812501 | C/1 Advisory reference — outside the item-of-supply concept Ashcroft Inc Dba Heise |
| 1812501 | 3/9 Design control — primary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
NSN 4820-01-330-3735 is a Collar,valve Disk, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-330-3735: End Item Identification: DRESSER INDUSTRIES,INC. SAFETY RELIEF VALVE TYPE 1982C 1 X 1.5 IN. IN. 0 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.