The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-00-065-5502, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-065-5502 |
| Primary Part Number | RB17365 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec |
| Status | ACTIVE |
| Flow Control Device | PLUG |
| Material Document and Classification | MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OUTSIDE |
| Material Document and Classification | MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | QQ-S-763,CLASS 416 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material | STEEL COMP 416 FLOW CONTROL DEVICE |
| Material | STEEL COMP E52100 BODY |
| Material | STEEL COMP E52100 SEAT |
| 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 |
|---|---|
| RB17365 PRIMARY | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA) |
NSN 4820-00-065-5502 is a Valve,relief,pressure and Temper, manufactured by Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-065-5502 has 1 manufacturer part number on file: RB17365 (Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec).
Key specifications for RB17365: Flow Control Device: PLUG; Material Document and Classification: MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE BODY; Material Document and Classification: MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OUTSIDE; Material Document and Classification: MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE SEAT. 8 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.