The Valve,check, cataloged under National Stock Number 4820-01-063-2075, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 13 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-063-2075 |
| Primary Part Number | SS845-2110245ASSY7FA11-2I |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 1.500 INCHES ALL ENDS IN |
| Connection Style | REDUCED SOCKET WITH ONE BRAZING RING (PIPE) ALL ENDS |
| Mounting Position | HORIZONTAL |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material | COPPER ALLOY 903 SEAT |
| Material | COPPER ALLOY 903 BODY |
| Material | COPPER ALLOY 903 AND PLASTIC 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 |
|---|---|
| SS845-2110245ASSY7FA11-2I PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| SS845-2110245ASSY7FA 1 1-2IN | 5/9 Secondary reference Naval Sea Systems Command |
| 2620-927X4ASSY7FA 1 1-2IN | 5/9 Secondary reference National Oilwell |
| SS845-2110245AS | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 2620-927X4ASSY7FA 1 1-2IN | 5/9 Secondary reference U.S. Government activity |
| SS845-2110245ASSY7FA11-2I | 5/9 Secondary reference National Oilwell |
| SS845-2110245 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-063-2075 is a Valve,check, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-063-2075 has 1 manufacturer part number on file: SS845-2110245ASSY7FA11-2I (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-067-9864, 4820-01-086-4049, 4820-01-093-7911. Verify interchangeability with system specifications before substitution.
Key specifications for SS845-2110245ASSY7FA11-2I: Flow Control Device: DISK; Nominal Pipe Size Accommodated: 1.500 INCHES ALL ENDS IN; Connection Style: REDUCED SOCKET WITH ONE BRAZING RING (PIPE) ALL ENDS; Mounting Position: HORIZONTAL. 13 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.