The Valve,ball, cataloged under National Stock Number 4810-01-646-2446, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Ovc-Engineered Solutions Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,ball |
| FSC / FSG | 4810 — Valves, Powered (FSG 48) |
| Manufacturers | Ovc-Engineered Solutions Llc (CAGE 3H7B5) |
| Parameter | Value |
|---|---|
| NSN | 4810-01-646-2446 |
| Primary Part Number | 4378A1165-2 |
| Item Name | Valve,ball |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Ovc-Engineered Solutions Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 4378A1165-2 PRIMARY | Ovc-Engineered Solutions Llc (USA) |
| Reference | Meaning |
|---|---|
| 4378A1165 | D/9 Drawing number reference only Ovc-Engineered Solutions Llc |
NSN 4810-01-646-2446 is a Valve,ball, manufactured by Ovc-Engineered Solutions Llc, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-646-2446 has 1 manufacturer part number on file: 4378A1165-2 (Ovc-Engineered Solutions Llc).
3 possible matches (shared part number, not a government interchangeability claim): 4810-01-646-2457, 4810-01-646-2466, 4820-01-646-5148. Verify interchangeability with system specifications before substitution.
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.