The Valve,check, cataloged under National Stock Number 4820-01-435-8452, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corp Div Instrumentation Products Division. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-435-8452 |
| Primary Part Number | 6F-C6L-5-B |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corp Div Instrumentation Products Division |
| Status | ACTIVE |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Material | COPPER ALLOY BODY |
| Material | STEEL COMP 316 SEAT |
| Material | RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM FLOW CONTROL DEVICE |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 6F-C6L-5-B PRIMARY | Parker-Hannifin Corp Div Instrumentation Products Division (USA) |
| Reference | Meaning |
|---|---|
| 1075/9000.62 | 5/9 Secondary reference Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt) |
| 1075/9000.62 | 5/9 Secondary reference Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt) |
NSN 4820-01-435-8452 is a Valve,check, manufactured by Parker-Hannifin Corp Div Instrumentation Products Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-435-8452 has 1 manufacturer part number on file: 6F-C6L-5-B (Parker-Hannifin Corp Div Instrumentation Products Division).
Key specifications for 6F-C6L-5-B: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Material: COPPER ALLOY BODY; Material: STEEL COMP 316 SEAT; Material: RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM FLOW CONTROL DEVICE. 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.