The Valve Core, cataloged under National Stock Number 4820-01-592-6253, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Jb Industries, Inc.. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-592-6253 |
| Primary Part Number | A31999 |
| Item Name | Valve Core |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Jb Industries, Inc. |
| Status | ACTIVE |
| Core Environmental Protection | OIL RESISTANT |
| Unit Package Quantity | 5 |
| Commercial Core Length Designator | STANDARD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4820-01-592-6253 is a Valve Core, manufactured by Jb Industries, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-592-6253 has 2 manufacturer part numbers on file: A31999 (Jb Industries, Inc.), 207161 (Actrol Parts).
Key specifications for A31999: Core Environmental Protection: OIL RESISTANT; Unit Package Quantity: 5; Special Features: TO BE USED ON 0.25 INCH ACCESS VALVES IN; Part Name Assigned by Controlling Agency: REPLACEMENT VALVE CORE. 3 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.