The Disk,valve, cataloged under National Stock Number 4820-01-310-6987, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-310-6987 |
| Primary Part Number | 18-31010 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Pressure Rating | 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 18-31F3-ITEM 5 | Hunt Valve Company, Inc. (USA) |
| 18-31010 PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 18-31F3 | D/9 Drawing number reference only Hunt Valve Company, Inc. |
NSN 4820-01-310-6987 is a Disk,valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-310-6987 has 2 manufacturer part numbers on file: 18-31F3-ITEM 5 (Hunt Valve Company, Inc.), 18-31010 (Hunt Valve Company, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-310-6988. Verify interchangeability with system specifications before substitution.
Key specifications for 18-31010: Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Special Features: FEMALE,FINAL MACHINING; FOR 3IN. GATE VALVE IN; Material: STEEL CORROSION RESISTING. 2 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.