The Ball,valve,ported, cataloged under National Stock Number 4820-01-198-1197, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Down East, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-198-1197 |
| Primary Part Number | D-1555-18 |
| Item Name | Ball,valve,ported |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Down East, Inc. |
| Status | ACTIVE |
| Material | STEEL |
| 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 |
|---|---|
| D-1555-18 PRIMARY | Down East, Inc. (USA) |
| D-1555 ITEM 18 | Down East, Inc. (USA) |
| Reference | Meaning |
|---|---|
| D-1555 | D/9 Drawing number reference only Down East, Inc. |
NSN 4820-01-198-1197 is a Ball,valve,ported, manufactured by Down East, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-198-1197 has 2 manufacturer part numbers on file: D-1555-18 (Down East, Inc.), D-1555 ITEM 18 (Down East, Inc.).
Key specifications for D-1555-18: Special Features: 0.156 IN. OD; 115 PSIG,MAX; MEDIA AIR AND LUBE OIL IN; Material: STEEL. 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.