The Seat,valve, cataloged under National Stock Number 4820-00-111-7015, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-111-7015 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Flange Diameter | 1.876 INCHES NOMINAL IN |
| Body Outside Diameter | 1.844 INCHES NOMINAL IN |
| Style Designator | PLAIN FLANGED |
| Material Document and Classification | MIL-S-18410,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Body Inside Diameter | 1.030 INCHES MINIMUM AND 1.036 INCHES MAXIMUM IN |
| Seat Radius | 0.240 INCHES NOMINAL IN |
| Under Flange Height | 0.879 INCHES NOMINAL IN |
| Material | STEEL BODY |
| 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 |
|---|---|
| 134B509BXPC2 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 134B509BXPC2 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 134B509BXP2 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 134B509BXPC2 | 3/9 Design control — primary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
NSN 4820-00-111-7015 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-111-7015: Flange Seat to Disk End Height: 0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN; Flange Diameter: 1.876 INCHES NOMINAL IN; Body Outside Diameter: 1.844 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED. 10 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.