The Valve,check, cataloged under National Stock Number 4820-01-104-3965, 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 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-104-3965 |
| Primary Part Number | 90104000 |
| 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 |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Bolt Circle Nominal Diameter | 3.875 INCHES ALL ENDS IN |
| Mounting Position | VERTICAL |
| Connection Type | FLANGE FIRST END |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Bolt Hole Nominal Diameter | 0.500 INCHES ALL ENDS IN |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 1.250 INCHES IN |
| Maximum Operating Temp | 60.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter | 5.000 INCHES ALL ENDS IN |
| Mounting Facility | BRACKET(S) |
| Bolt Hole Quantity | 4 ALL ENDS |
| Face to Face Distance | 8.000 INCHES IN |
| Material | STEEL BODY |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING |
| 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 |
|---|---|
| 90104000 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| PK 152RF8 1 1/2 INCH | Newdell Company, the (USA) |
| Reference | Meaning |
|---|---|
| NS-4070 | D/9 Drawing number reference only Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| PK 152RF8 | 5/9 Secondary reference Newdell Company, the |
| NS-4070 1 1/2IN | 5/9 Secondary reference National Oilwell |
| NS-4070 1 1/2IN | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| NS-4070 | 5/9 Secondary reference National Oilwell |
NSN 4820-01-104-3965 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 4820-01-104-3965 has 2 manufacturer part numbers on file: 90104000 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), PK 152RF8 1 1/2 INCH (Newdell Company, the).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-113-1748. Verify interchangeability with system specifications before substitution.
Key specifications for 90104000: Flow Control Device: DISK; Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Bolt Circle Nominal Diameter: 3.875 INCHES ALL ENDS IN. 19 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.