The Disk,valve, cataloged under National Stock Number 4820-01-161-1361, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Derbyshire Machine & Tool Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-161-1361 |
| Primary Part Number | 508-4325837 PC8 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| 2280-398 PC 8 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 837008 | Bec Systems Llc Dba Bec Machine Products (USA) |
| 508-4325837 PC8 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 4325837PC8 | D/9 Drawing number reference only U.S. Government activity |
| 508-4325837PC8 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-161-1361 is a Disk,valve, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-161-1361 has 3 manufacturer part numbers on file: 2280-398 PC 8 (Huntington Ingalls Inc Div Newport News Shipbuilding), 837008 (Bec Systems Llc Dba Bec Machine Products), 508-4325837 PC8 (Derbyshire Machine & Tool Co).
Key specifications for 508-4325837 PC8: Material: NICKEL ALLOY. 1 specification is 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.