The Valve,check, cataloged under National Stock Number 4820-01-547-7227, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fairbanks Morse, Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-547-7227 |
| Primary Part Number | ZZAUT004B1H |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| ZZAUT004B1H PRIMARY | Fairbanks Morse, Llc (USA) |
| ZZAUT004B1H | Everllence France (FRA) |
| Reference | Meaning |
|---|---|
| ZZAUT004B1H | 5/9 Secondary reference U.S. Government activity |
| B/M P12619563 ITEM 11 | 3/9 Design control — primary reference U.S. Government activity |
| P12619563 | D/9 Drawing number reference only U.S. Government activity |
| B/M P12619563 ITEM 11 | C/1 Advisory reference — outside the item-of-supply concept Fairbanks Morse, Llc |
NSN 4820-01-547-7227 is a Valve,check, manufactured by Fairbanks Morse, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-547-7227 has 2 manufacturer part numbers on file: ZZAUT004B1H (Fairbanks Morse, Llc), ZZAUT004B1H (Everllence France).
Key specifications for ZZAUT004B1H: Part Name Assigned by Controlling Agency: VALVE, NON RETURN; End Item Identification: PNEUMATIC CONTROL BOX ASSEMBLY; LPD-17. 0 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.