The Seat,valve, cataloged under National Stock Number 4820-01-062-5744, 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 9 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-062-5744 |
| Primary Part Number | 7588-39-1 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Walworth Company |
| Status | ACTIVE |
| Thread Length | 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Style Designator | PLAIN THREADED |
| Material Document and Classification | QQ-N-281 CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 6.000 INCHES NOMINAL IN |
| Nominal Thread Size | 7.125 INCHES SINGLE THREADED PORTION IN |
| Thread Quantity Per Inch | 12 SINGLE THREADED PORTION |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNS SINGLE THREADED PORTION |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| 7588-39-1 PRIMARY | The Walworth Company (USA) |
| N-12130-6IN PIECE 2 | The Walworth Company (USA) |
| Reference | Meaning |
|---|---|
| 8314-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 8314-1 | C/1 Advisory reference — outside the item-of-supply concept The Walworth Company |
| 7118391 6IN. | 5/9 Secondary reference Zamon Co Inc the |
| 8314-1 | 5/9 Secondary reference U.S. Government activity |
| N-12130 PIECE 2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4820-01-062-5744 is a Seat,valve, manufactured by The Walworth Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-062-5744 has 2 manufacturer part numbers on file: 7588-39-1 (The Walworth Company), N-12130-6IN PIECE 2 (The Walworth Company).
Key specifications for 7588-39-1: Overall Height: 0.688 INCHES NOMINAL IN; Thread Length: 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: PLAIN THREADED; Material Document and Classification: QQ-N-281 CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 9 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.