The Seat,valve, cataloged under National Stock Number 4820-01-671-4263, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowline Valve and Controls, L.l.c.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-671-4263 |
| Primary Part Number | 78N-4T003 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowline Valve and Controls, L.l.c. |
| Status | ACTIVE |
| Style Designator | PLAIN |
| Material | METAL GRAPHITE OVERALL |
| 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 |
|---|---|
| 78N-4T003 PRIMARY | Flowline Valve and Controls, L.l.c. (USA) |
| Reference | Meaning |
|---|---|
| FL 78N-0150-1ABM REV C IT NO 2 | C/1 Advisory reference — outside the item-of-supply concept Flowline Valve and Controls, L.l.c. |
NSN 4820-01-671-4263 is a Seat,valve, manufactured by Flowline Valve and Controls, L.l.c., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-671-4263 has 1 manufacturer part number on file: 78N-4T003 (Flowline Valve and Controls, L.l.c.).
Key specifications for 78N-4T003: Style Designator: PLAIN; End Item Identification: 3.00 INCH TRIPLE OFFSET BUTTERFLY VALVE; NIIN 016714236; IN; Material: METAL GRAPHITE OVERALL. 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.