The Valve,safety Relief, cataloged under National Stock Number 4820-00-602-1956, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-602-1956 |
| Primary Part Number | 1177A |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Hydro-Aire Aerospace Corp |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1177A | Hydro-Aire Aerospace Corp (USA) |
| AN6200-4AB | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
NSN 4820-00-602-1956 is a Valve,safety Relief, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-602-1956 has 2 cross-referenced part numbers: 1177A (Hydro-Aire Aerospace Corp), AN6200-4AB (Aeronautical Standards Group Dept of Navy and Air Force).
There is 1 known substitute for 4820-00-602-1956: 5310-00-012-1902. Verify interchangeability with system specifications before substitution.
Key specifications for 1177A: Flow Control Device: POPPET. 1 total characteristics are documented in the Federal Logistics Information System.