The Disk,valve, cataloged under National Stock Number 4820-01-481-3946, 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 5 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-481-3946 |
| Primary Part Number | S90058 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Pressure Rating | 700.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Temp Rating | 160.0 FAHRENHEIT NOMINAL DEGF |
| Style Designator | SWING CHECK |
| Media for Which Designed | WATER, SALT |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| S90058 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| 2621-927-09 | D/9 Drawing number reference only U.S. Government activity |
| 2621-927-09ITEM | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 2621-927-09 ITEM 9 AND 17-24, 5" | 5/9 Secondary reference U.S. Government activity |
| 2621-927-09 ITEM 9 & 17-24, 5 IN | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
NSN 4820-01-481-3946 is a Disk,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-481-3946 has 1 manufacturer part number on file: S90058 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
Key specifications for S90058: Pressure Rating: 700.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Temp Rating: 160.0 FAHRENHEIT NOMINAL DEGF; Style Designator: SWING CHECK; Special Features: NHA 4820-00-152-9661, CHECK VALVE, P/N 2621-927-09, ASSY IRA, 5 INCH, L1. THIS ASSEMBLY CONSISTS OF ITEM 9, CLAPPER; ITEM 17, BUMPER, SOUND DAMPENING; ITEM 18, SCREW, BUMPER; ITEM 19, NUT, BUMPER; ITEM 20, PIN, CLAPPER HINGE; ITEM 21, BUSHINGS(2); ITEM 22, BUSHINGS, SOUND DANPENING (2); ITEM 23, RING, RETAINING (2); ITEM 24, SEAL, CLAPPER. IN. 5 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.