The Seat,valve, cataloged under National Stock Number 4820-01-069-1348, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-069-1348 |
| Primary Part Number | 4875-F-380 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.130 INCHES NOMINAL IN |
| Flange Diameter | 0.850 INCHES NOMINAL IN |
| Body Outside Diameter | 0.590 INCHES NOMINAL IN |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 0.313 INCHES NOMINAL IN |
| Under Flange Height | 0.115 INCHES NOMINAL IN |
| Material | NICKEL ALLOY OVERALL |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| SS845-1889587ASSYD1INPC20 | Naval Sea Systems Command (USA) |
| SS845-1889587ASSYD1INPC20 | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 4875-F-380 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
NSN 4820-01-069-1348 is a Seat,valve, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-069-1348 has 3 manufacturer part numbers on file: SS845-1889587ASSYD1INPC20 (Naval Sea Systems Command), SS845-1889587ASSYD1INPC20 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 4875-F-380 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
Key specifications for 4875-F-380: Flange Seat to Disk End Height: 0.130 INCHES NOMINAL IN; Flange Diameter: 0.850 INCHES NOMINAL IN; Body Outside Diameter: 0.590 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED. 8 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.