The Seat,valve, cataloged under National Stock Number 4820-01-192-3528, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-192-3528 |
| Primary Part Number | SL-5700 PIECE 86 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Material | MANGANESE SEAT |
| 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 |
|---|---|
| DX-84983 PIECE 86 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| SL-5700 PIECE 86 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| SL-5700 | D/9 Drawing number reference only U.S. Government activity |
| SL-5700 PIECE 86 | 3/9 Design control — primary reference U.S. Government activity |
| DX-84983 PIECE 86 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-192-3528 is a Seat,valve, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-192-3528 has 2 manufacturer part numbers on file: DX-84983 PIECE 86 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL-5700 PIECE 86 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
3 possible matches (shared part number, not a government interchangeability claim): 4320-01-192-8438, 4320-01-192-8439, 4320-01-192-8473. Verify interchangeability with system specifications before substitution.
Key specifications for SL-5700 PIECE 86: Material: MANGANESE SEAT; Seating Surface Shape: ANGULAR. 2 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.