The Seat,valve, cataloged under National Stock Number 4820-01-327-7110, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Truflo Marine Ltd. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-327-7110 |
| Primary Part Number | 057-18-30-0001-000 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Truflo Marine Ltd |
| Status | ACTIVE |
| Taper Minor Diameter | 2.608 INCHES NOMINAL IN |
| Taper Major Diameter | 3.020 INCHES NOMINAL IN |
| 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 |
|---|---|
| 057-18-30-0001-000 | Truflo Marine Ltd (GBR) |
| 080L050000 | Truflo Marine Ltd (GBR) |
| 057-18-30-0001- 0000 | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 057-18-30-0001-0000 | 3/9 Design control — primary reference Circor Intl Inc |
NSN 4820-01-327-7110 is a Seat,valve, manufactured by Truflo Marine Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-327-7110 has 3 manufacturer part numbers on file: 057-18-30-0001-000 (Truflo Marine Ltd), 080L050000 (Truflo Marine Ltd), 057-18-30-0001- 0000 (Leslie Controls, Inc. Dba Leslie Controls Inc).
Key specifications for 057-18-30-0001-000: Taper Minor Diameter: 2.608 INCHES NOMINAL IN; Taper Major Diameter: 3.020 INCHES NOMINAL IN. 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.