The Valve,check, cataloged under National Stock Number 4820-01-264-5571, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-264-5571 |
| Primary Part Number | 324566 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling |
| Status | ACTIVE |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Style Designator | STRAIGHT THRU |
| Disk Loading Method | SPRING |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| 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 |
|---|---|
| 9813516020 | Land Rover Australia Jaguar Land Rover Australia Pty Ltd (AUS) |
| 9813516020 | Isuzu Motors Limited (JPN) |
| 324566 PRIMARY | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
| Reference | Meaning |
|---|---|
| 9813516020 | 5/9 Secondary reference Isuzu Motor Co. Ltd |
| 324566 | 5/9 Secondary reference Hyster-Yale Group, Inc. |
NSN 4820-01-264-5571 is a Valve,check, manufactured by Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-264-5571 has 3 manufacturer part numbers on file: 9813516020 (Land Rover Australia Jaguar Land Rover Australia Pty Ltd), 9813516020 (Isuzu Motors Limited), 324566 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling).
2 possible matches (shared part number, not a government interchangeability claim): 5905-01-292-2606, 5340-01-691-8344. Verify interchangeability with system specifications before substitution.
Key specifications for 324566: Mounting Position: HORIZONTAL OR VERTICAL; Style Designator: STRAIGHT THRU; Disk Loading Method: SPRING; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE. 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.