The Valve,safety Relief, cataloged under National Stock Number 4820-01-357-2442, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Moog Military Aircraft Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-357-2442 |
| Primary Part Number | B33266-1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Moog Military Aircraft Llc |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Style Designator | SCREW-IN CARTRIDGE |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| B33266-1 PRIMARY | Moog Military Aircraft Llc (USA) |
| Reference | Meaning |
|---|---|
| B33266-1 | 5/9 Secondary reference U.S. Government activity |
| B33266 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-357-2442 is a Valve,safety Relief, manufactured by Moog Military Aircraft Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-357-2442 has 1 manufacturer part number on file: B33266-1 (Moog Military Aircraft Llc).
Key specifications for B33266-1: Flow Control Device: BALL; Style Designator: SCREW-IN CARTRIDGE; Special Features: CARTRIDGE TYPE; Valve Operation Method: AUTOMATIC. 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.
NSN 4820-01-357-2442 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.