The Seat,valve, cataloged under National Stock Number 4820-01-070-2494, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-070-2494 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Body Outside Diameter | 1.109 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZY |
| Style Designator | PLAIN |
| Body Inside Diameter | 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Reference Number Differentiating Characteristics | ITEMS THAT SUPPORT A LEVEL 1 OR SUBSAFE CRITICAL SYSTEM THAT HAS UNDERGONE QUALITY ASSURANCE DURINING THE ACQUISITION PROCESS |
| Seating Surface Shape | FLAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| V-2895 PIECE 9 | 5/1 Secondary reference Tyco Fire Products Lp |
| V-2895 PIECE 9Q3 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| V2909 | 3/1 Design control — primary reference Tyco Fire Products Lp |
| V-3378 PIECE 9Q3 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 4820-01-070-2494 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-070-2494: Overall Height: 0.250 INCHES NOMINAL IN; Body Outside Diameter: 1.109 INCHES NOMINAL IN; Criticality Code Justification: ZZZY; Style Designator: PLAIN. 7 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.
NSN 4820-01-070-2494 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.