The Seat,valve, cataloged under National Stock Number 4820-00-678-4823, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fisher Controls Co Inc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-678-4823 |
| Primary Part Number | 1E9274-46072 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Fisher Controls Co Inc |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.500 INCHES NOMINAL IN |
| Flange Diameter | 2.812 INCHES NOMINAL IN |
| Thread Length | 0.369 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Seal Accommodation Type | GROOVED |
| Style Designator | THREADED FLANGED |
| Body Inside Diameter | 1.000 INCHES NOMINAL IN |
| Nominal Thread Size | 2.688 INCHES SINGLE THREADED PORTION IN |
| Under Flange Height | 0.625 INCHES NOMINAL IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Thread Quantity Per Inch | 16 SINGLE THREADED PORTION |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | UNS SINGLE THREADED PORTION |
| 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 |
|---|---|
| 1E9274-46072 PRIMARY | Fisher Controls Co Inc (USA) |
| H7106404APC6 | Industrial Service and Supply, Inc (USA) |
| Reference | Meaning |
|---|---|
| H7106404APC6 | 5/9 Secondary reference Elsag Bailey Inc |
| 1E9274 | 5/9 Secondary reference Fisher Controls Co Inc |
NSN 4820-00-678-4823 is a Seat,valve, manufactured by Fisher Controls Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-678-4823 has 2 manufacturer part numbers on file: 1E9274-46072 (Fisher Controls Co Inc), H7106404APC6 (Industrial Service and Supply, Inc).
Key specifications for 1E9274-46072: Flange Seat to Disk End Height: 0.500 INCHES NOMINAL IN; Flange Diameter: 2.812 INCHES NOMINAL IN; Thread Length: 0.369 INCHES NOMINAL SINGLE THREADED PORTION IN; Seal Accommodation Type: GROOVED. 13 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.