The Disk,valve, cataloged under National Stock Number 4820-01-510-9549, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-510-9549 |
| Primary Part Number | 32634 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowserve Inc |
| Status | ACTIVE |
| Pressure Rating | 800.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Material | STEEL |
| 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 |
|---|---|
| 32634 PRIMARY | Flowserve Inc (USA) |
| Reference | Meaning |
|---|---|
| 40408A2 R 16 | D/9 Drawing number reference only Flowserve Inc |
| 40408A2 R 16 ITEM 6 | 5/9 Secondary reference Flowserve Inc |
NSN 4820-01-510-9549 is a Disk,valve, manufactured by Flowserve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-510-9549 has 1 manufacturer part number on file: 32634 (Flowserve Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-510-9576, 6515-01-725-3897. Verify interchangeability with system specifications before substitution.
Key specifications for 32634: Pressure Rating: 800.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Special Features: THIS GATE IS PART OF A 2 GATE VALVE, SOCKET WELD ENDS FORGED STEEL, OS& Y, BOLTED BONNET, 5 DEGREE RENEWABLE SEATS, BOLTED GLAND LOOSE SLOTTED GATE, CLASS 800. THE SERIES NUMBER IS SW12401-09. THE MATERIAL CLASSIFICATION FOR THIS GATE IS A182 F316.; End Item Identification: VALVE, GATE 2.; Material: STEEL. 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.