The Valve,ball, cataloged under National Stock Number 4820-01-642-2830, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Nil-Cor, Llc. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Naval Sea Systems Command (CAGE 53711); Nil-Cor, Llc (CAGE 1BM63) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-642-2830 |
| Primary Part Number | 845-8219247-D1A-HBNA-024 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Nil-Cor, 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 |
|---|---|
| 845-8219247 ITEM NO. 24/HBNA | Naval Sea Systems Command (USA) |
| 845-8219247-D1A-HBNA-024 PRIMARY | Nil-Cor, Llc (USA) |
| Reference | Meaning |
|---|---|
| 845-8219247 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-642-2830 is a Valve,ball, manufactured by Nil-Cor, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-642-2830 has 2 manufacturer part numbers on file: 845-8219247 ITEM NO. 24/HBNA (Naval Sea Systems Command), 845-8219247-D1A-HBNA-024 (Nil-Cor, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-662-5373, 3010-01-663-2075. 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.