The Seat,valve, cataloged under National Stock Number 4820-01-108-9569, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-108-9569 |
| Primary Part Number | 2620-926X2 PC 7 1 1-2IN |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls Inc |
| Status | ACTIVE |
| Body Outside Diameter | 0.812 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Body Inside Diameter | 0.625 INCHES NOMINAL IN |
| Material | NICKEL ALLOY OVERALL |
| 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 |
|---|---|
| 2620-926X2 PC 7 1 1-2IN PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| SS845-2110238 PIECE 7 1 1-2IN | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2620-926X2PIECE | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| SS845-2110238 | D/9 Drawing number reference only U.S. Government activity |
| 845-2110238PIEC | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| SS845-2110238 | D/9 Drawing number reference only Naval Sea Systems Command |
| SS845-2110238 PIECE 7 1 1-2IN | 5/2 Secondary reference U.S. Government activity |
| SS845-2110238PC | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 2620-926X2 PIECE 7 1 1-2IN | 5/9 Secondary reference U.S. Government activity |
| 2620-926X2 PC 7 1 1-2IN | 5/9 Secondary reference Circor Intl Inc |
NSN 4820-01-108-9569 is a Seat,valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-108-9569 has 2 manufacturer part numbers on file: 2620-926X2 PC 7 1 1-2IN (Leslie Controls, Inc. Dba Leslie Controls Inc), SS845-2110238 PIECE 7 1 1-2IN (Naval Sea Systems Command).
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-147-3018, 4820-01-154-5454, 4820-01-154-5547. Verify interchangeability with system specifications before substitution.
Key specifications for 2620-926X2 PC 7 1 1-2IN: Overall Height: 0.344 INCHES NOMINAL IN; Body Outside Diameter: 0.812 INCHES NOMINAL IN; Style Designator: PLAIN; Body Inside Diameter: 0.625 INCHES NOMINAL IN. 5 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.