The Ball,check, cataloged under National Stock Number 4820-01-166-8497, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-166-8497 |
| Item Name | Ball,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AS498 | 5/9 Secondary reference Grinnell Corp Sub of Tyco Intl Us Inc |
| 7245 ITEM 2 | 5/9 Secondary reference Grinnell Corp Sub of Tyco Intl Us Inc |
| PSN 91-556-1-003 | 5/9 Secondary reference Grinnell Corp Sub of Tyco Intl Us Inc |
| 4820PL1290088 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 803-1385828 PC | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 7245 ITEM 2 | C/1 Advisory reference — outside the item-of-supply concept Naval Inventory Control Point Mechanicsburg |
| 91-556-1-003 | 3/9 Design control — primary reference Grinnell Corp Sub of Tyco Intl Us Inc |
NSN 4820-01-166-8497 is a Ball,check, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-166-8497: Material: STEEL CORROSION RESISTING. 1 specification is 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.