The Valve,check, cataloged under National Stock Number 4820-01-141-1340, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 21 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 | 4820-01-141-1340 |
| Primary Part Number | C5G-815-S19 20 PSI |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | RECTANGULAR WITH HOLES ALL ENDS |
| Flange Face Design | RECESSED STRAIGHT ALL ENDS |
| Nominal Length | 4.575 INCHES ALL ENDS IN |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Bolt Hole Nominal Diameter | 0.656 INCHES ALL ENDS IN |
| Valve Size | 0.750 INCHES IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 2.563 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Mounting Facility | THREADED FASTENER |
| Bolt Hole Quantity | 4 ALL ENDS |
| Nominal Width | 3.953 INCHES ALL ENDS IN |
| Face to Face Distance | 1.890 INCHES IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 3.188 INCHES ALL ENDS IN |
| Material | STEEL BODY |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | RUBBER PACKING |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 1.525 INCHES ALL ENDS IN |
| 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 |
|---|---|
| C5G-815-S19 20 PSI PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 4820-01-141-1340 is a Valve,check, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-141-1340 has 1 manufacturer part number on file: C5G-815-S19 20 PSI (Eaton Aerospace, Llc Dba Jackson South).
Key specifications for C5G-815-S19 20 PSI: Flow Control Device: DISK; Flange Shape: RECTANGULAR WITH HOLES ALL ENDS; Flange Face Design: RECESSED STRAIGHT ALL ENDS; Nominal Length: 4.575 INCHES ALL ENDS IN. 21 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.