The Valve Pilot Relief, cataloged under National Stock Number 4820-01-057-6962, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Testek Llc Dba Testek Solutions. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-057-6962 |
| Primary Part Number | 6740-4012-2 |
| Item Name | Valve Pilot Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Testek Llc Dba Testek Solutions |
| Status | ACTIVE |
| General Characteristics Item Description | 6.250 IN.LENGTH;2.500 IN. DIAMETER;3.250 IN. WIDTH IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6740-4012-2 PRIMARY | Testek Llc Dba Testek Solutions (USA) |
| Reference | Meaning |
|---|---|
| 6740-4012-2 | 5/9 Secondary reference Aai Corporation Div Mississippi Operations |
NSN 4820-01-057-6962 is a Valve Pilot Relief, manufactured by Testek Llc Dba Testek Solutions, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-057-6962 has 1 manufacturer part number on file: 6740-4012-2 (Testek Llc Dba Testek Solutions).
Key specifications for 6740-4012-2: General Characteristics Item Description: 6.250 IN.LENGTH;2.500 IN. DIAMETER;3.250 IN. WIDTH IN; End Item Identification: HIGH PRESSURE CONSOLE. 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.
NSN 4820-01-057-6962 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.