The Ball,check, cataloged under National Stock Number 4820-01-386-1895, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Gross Mechanical Laboratories Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-386-1895 |
| Primary Part Number | HT-56 |
| Item Name | Ball,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Gross Mechanical Laboratories Inc |
| 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 |
|---|---|
| HT-56 PRIMARY | Gross Mechanical Laboratories Inc (USA) |
NSN 4820-01-386-1895 is a Ball,check, manufactured by Gross Mechanical Laboratories Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-386-1895 has 1 manufacturer part number on file: HT-56 (Gross Mechanical Laboratories Inc).
Key specifications for HT-56: Special Features: MATL-NEOPRENE RUBBER; End Item Identification: GROSS MECHANICAL LABORATORIES HEAD MODEL NO. EB. 0 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.