The Seat,valve, cataloged under National Stock Number 4820-01-433-7087, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-433-7087 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Style Designator | PLAIN |
| Body Inside Diameter | 1.940 INCHES NOMINAL IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| Seating Surface Shape | RADIAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SP-17-88 | 3/2 Design control — primary reference U.S. Government activity |
| 13221E8282 ITEM 88 | 5/2 Secondary reference U.S. Government activity |
| DPB-17-S2 DP17-91164A ITEM 88 | 5/2 Secondary reference U.S. Government activity |
| 13221E8282 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4820-01-433-7087 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-433-7087: Style Designator: PLAIN; Body Inside Diameter: 1.940 INCHES NOMINAL IN; Special Features: GLASS FILLED POLYTETRAFLUOROETHYLENE; FOR SZ 2.000 IN. BALL VALVE, 3-WAY, SERIES DP IN; End Item Identification: 4610-01-341-6289. 4 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.