The Disk,valve, cataloged under National Stock Number 4810-01-503-8721, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Flowserve Us Company Div Flow Control Division. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-503-8721 |
| Primary Part Number | 187748.833.000 |
| Item Name | Disk,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Flowserve Us Company Div Flow Control Division |
| Status | ACTIVE |
| Media for Which Designed | STEAM |
| Material | COBALT COMP 6 |
| 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 |
|---|---|
| 187748.833.000 PRIMARY | Flowserve Us Company Div Flow Control Division (USA) |
| PL161239.001 ITEM 50 | Flowserve Us Company Div Flow Control Division (USA) |
| Reference | Meaning |
|---|---|
| 10155435 | 5/9 Secondary reference Flowserve Us Company Div Flow Control Division |
NSN 4810-01-503-8721 is a Disk,valve, manufactured by Flowserve Us Company Div Flow Control Division, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-503-8721 has 2 manufacturer part numbers on file: 187748.833.000 (Flowserve Us Company Div Flow Control Division), PL161239.001 ITEM 50 (Flowserve Us Company Div Flow Control Division).
Key specifications for 187748.833.000: Special Features: MK1, MEGASTREAM, 1.50/2 INCH. VALVE. IN; Media for Which Designed: STEAM; Part Name Assigned by Controlling Agency: PLUG; End Item Identification: 4810-01-503-8694; MK1-X MEGASTREAM GLOBE VALVE.. 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.