The Seat,valve, cataloged under National Stock Number 4820-01-413-6251, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Schneider Electric Systems Usa Inc. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-413-6251 |
| Primary Part Number | 12602 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Schneider Electric Systems Usa Inc |
| Status | ACTIVE |
| Thread Length | 0.304 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Style Designator | THREADED FLANGED |
| Nominal Thread Size | 0.937 INCHES SINGLE THREADED PORTION IN |
| Thread Class | 3A SINGLE THREADED PORTION A |
| Thread Quantity Per Inch | 18 SINGLE THREADED PORTION |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 12602 PRIMARY | Schneider Electric Systems Usa Inc (USA) |
| 96679-A PART 12602 | Schneider Electric Systems Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| 3277851 | D/9 Drawing number reference only U.S. Government activity |
| 3277851 PART 12602 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-413-6251 is a Seat,valve, manufactured by Schneider Electric Systems Usa Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-413-6251 has 2 manufacturer part numbers on file: 12602 (Schneider Electric Systems Usa Inc), 96679-A PART 12602 (Schneider Electric Systems Usa Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-442-3421, 2940-01-498-6349. Verify interchangeability with system specifications before substitution.
Key specifications for 12602: Thread Length: 0.304 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: THREADED FLANGED; Nominal Thread Size: 0.937 INCHES SINGLE THREADED PORTION IN; Special Features: VALVE,TEMP REG. 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.