The Piston,valve, cataloged under National Stock Number 4820-01-414-0427, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tld Ace Corp Div Tld Ace. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-414-0427 |
| Primary Part Number | 1000193-P7 |
| Item Name | Piston,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tld Ace Corp Div Tld Ace |
| Status | ACTIVE |
| Valve Type for Which Designed | RELIEF |
| Valve Model Number for Which Designed | SVJ4021R |
| Valve Size for Which Designed | 0.750 INCHES IN |
| Valve Design Control Activity | 23724 |
| Material | STEEL |
| 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 |
|---|---|
| 1000193-P7 PRIMARY | Tld Ace Corp Div Tld Ace (USA) |
| Reference | Meaning |
|---|---|
| 406 | 5/9 Secondary reference Ruthman Pump and Engineering Inc Dba Fulflo Specialties Co Div Fulflo Specialties Co. |
NSN 4820-01-414-0427 is a Piston,valve, manufactured by Tld Ace Corp Div Tld Ace, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-414-0427 has 1 manufacturer part number on file: 1000193-P7 (Tld Ace Corp Div Tld Ace).
Key specifications for 1000193-P7: Valve Type for Which Designed: RELIEF; Valve Model Number for Which Designed: SVJ4021R; Valve Size for Which Designed: 0.750 INCHES IN; Special Features: MEDIA REFRIGERANT 12. 5 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.