The Valve,check, cataloged under National Stock Number 4820-01-415-7342, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Officine Meccaniche Aeronautiche Spa. Government technical data includes 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-415-7342 |
| Primary Part Number | CKFA1876205A |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Officine Meccaniche Aeronautiche Spa |
| Status | ACTIVE |
| Nominal Outside Diameter | 0.187 INCHES ALL ENDS IN |
| Material | STEEL CORROSION RESISTING BODY |
| 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 |
|---|---|
| CKFA1876205A | Officine Meccaniche Aeronautiche Spa (ITA) |
| Reference | Meaning |
|---|---|
| 585-6406616-46 | 5/9 Secondary reference Naval Sea Systems Command |
| 21803 FIND 13 | C/1 Advisory reference — outside the item-of-supply concept Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace |
| 211059378 | 5/9 Secondary reference Naval Sea Systems Command |
| 6406616 | D/9 Drawing number reference only Naval Sea Systems Command |
| CKFA1876205A | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-415-7342 is a Valve,check, manufactured by Officine Meccaniche Aeronautiche Spa, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-415-7342 has 1 manufacturer part number on file: CKFA1876205A (Officine Meccaniche Aeronautiche Spa).
Key specifications for CKFA1876205A: Nominal Outside Diameter: 0.187 INCHES ALL ENDS IN; Special Features: CYLINDER-HYD; End Item Identification: SEAWOLF CLASS SSN; Material: STEEL CORROSION RESISTING BODY. 2 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.