The Cap,valve, cataloged under National Stock Number 4820-01-085-6614, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Walworth Company. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-085-6614 |
| Primary Part Number | A609131 |
| Item Name | Cap,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Walworth Company |
| Status | ACTIVE |
| Valve Type for Which Designed | CHECK |
| Outside Diameter | 5.406 INCHES NOMINAL IN |
| Valve Size for Which Designed | 3.000 INCHES IN |
| Height | 2.650 INCHES NOMINAL IN |
| Material | STEEL |
| Attachment Method | THREADED |
| 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 |
|---|---|
| N-11086 PC6 3IN | The Walworth Company (USA) |
| A609131 PRIMARY | The Walworth Company (USA) |
| Reference | Meaning |
|---|---|
| N-11086PC6 | C/1 Advisory reference — outside the item-of-supply concept The Walworth Company |
| N-11086 | D/9 Drawing number reference only The Walworth Company |
NSN 4820-01-085-6614 is a Cap,valve, manufactured by The Walworth Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-085-6614 has 2 manufacturer part numbers on file: N-11086 PC6 3IN (The Walworth Company), A609131 (The Walworth Company).
3 possible matches (shared part number, not a government interchangeability claim): 5330-01-227-4869, 5330-01-227-4871, 4820-01-285-1424. Verify interchangeability with system specifications before substitution.
Key specifications for A609131: Valve Type for Which Designed: CHECK; Outside Diameter: 5.406 INCHES NOMINAL IN; Valve Size for Which Designed: 3.000 INCHES IN; Height: 2.650 INCHES NOMINAL IN. 6 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.