The Seat,valve, cataloged under National Stock Number 4820-00-449-2168, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-449-2168 |
| Primary Part Number | SPCC 56-0024 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Body Outside Diameter | 2.250 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Body Inside Diameter | 1.750 INCHES NOMINAL IN |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| SPCC 56-0024 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| V2C10882NN | 3/2 Design control — primary reference U.S. Government activity |
| V3D10424 ITEM 8 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4820-00-449-2168 is a Seat,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-449-2168 has 1 manufacturer part number on file: SPCC 56-0024 (Naval Inventory Control Point Mechanicsburg).
Key specifications for SPCC 56-0024: Overall Height: 0.156 INCHES NOMINAL IN; Body Outside Diameter: 2.250 INCHES NOMINAL IN; Style Designator: PLAIN; Body Inside Diameter: 1.750 INCHES NOMINAL IN. 5 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.