The Disk,valve, cataloged under National Stock Number 4820-01-423-5102, 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 3 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-423-5102 |
| Primary Part Number | 93-D-149 PC NO 7 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Pressure Rating | 400.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Style Designator | PLAIN |
| Material | PLASTIC |
| 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 |
|---|---|
| 93-D-149-7 | Derbyshire Machine & Tool Co (USA) |
| 93-D-149 PC NO 7 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 93-D-149 PC NO | C/1 Advisory reference — outside the item-of-supply concept Derbyshire Machine & Tool Co |
NSN 4820-01-423-5102 is a Disk,valve, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-423-5102 has 2 manufacturer part numbers on file: 93-D-149-7 (Derbyshire Machine & Tool Co), 93-D-149 PC NO 7 (Derbyshire Machine & Tool Co).
Key specifications for 93-D-149 PC NO 7: Pressure Rating: 400.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Style Designator: PLAIN; Special Features: OXYGEN CLEAN; Material: PLASTIC. 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.