The Seat,valve, cataloged under National Stock Number 4820-01-202-8526, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sfc Valve Corporation. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Seat,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Sfc Valve Corporation (CAGE 1GZ83) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-202-8526 |
| Primary Part Number | 807-1500 PIECE 24 1/2IN |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sfc Valve Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| 807-1500 PIECE 24 1/2IN PRIMARY | Sfc Valve Corporation (USA) |
| Reference | Meaning |
|---|---|
| 807-1500 PIECE 24 1/2IN | 5/9 Secondary reference Sfc Valve Corp |
| 807-1500 | D/9 Drawing number reference only Sfc Valve Corp |
NSN 4820-01-202-8526 is a Seat,valve, manufactured by Sfc Valve Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-202-8526 has 1 manufacturer part number on file: 807-1500 PIECE 24 1/2IN (Sfc Valve Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-202-8566. Verify interchangeability with system specifications before substitution.
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.