The Seat,valve, cataloged under National Stock Number 4820-01-199-1252, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is General Electric Company. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-199-1252 |
| Primary Part Number | 5586016AA-14 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.135 INCHES NOMINAL IN |
| Flange Diameter | 2.125 INCHES NOMINAL IN |
| Thread Length | 0.370 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Body Stepped Inside Diameter | 1.250 INCHES NOMINAL FIRST STEP IN |
| Body Stepped Inside Diameter | 1.615 INCHES NOMINAL SECOND STEP IN |
| Style Designator | THREADED FLANGED |
| Nominal Thread Size | 1.875 INCHES SINGLE THREADED PORTION IN |
| Under Flange Height | 0.495 INCHES NOMINAL IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Thread Quantity Per Inch | 12 SINGLE THREADED PORTION |
| Material | STEEL OVERALL |
| Seat Angle in Deg | 45.000 NOMINAL |
| Thread Series Designator | UN SINGLE THREADED PORTION |
| Seating Surface Shape | ANGULAR |
| 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 |
|---|---|
| 5586016AA-14 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| W-5586016 PIECE 14 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| W-5586016 PIECE | C/1 Advisory reference — outside the item-of-supply concept General Electric Company |
| W-5586016 PIECE 14 | 5/9 Secondary reference General Electric Company |
NSN 4820-01-199-1252 is a Seat,valve, manufactured by General Electric Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-199-1252 has 1 manufacturer part number on file: 5586016AA-14 (General Electric Company).
Key specifications for 5586016AA-14: Flange Seat to Disk End Height: 0.135 INCHES NOMINAL IN; Flange Diameter: 2.125 INCHES NOMINAL IN; Thread Length: 0.370 INCHES NOMINAL SINGLE THREADED PORTION IN; Body Stepped Inside Diameter: 1.250 INCHES NOMINAL FIRST STEP IN. 14 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.