The Disk,valve, cataloged under National Stock Number 4820-01-560-2773, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Circor Aerospace Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-560-2773 |
| Primary Part Number | SE10257 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Circor Aerospace Inc |
| Status | ACTIVE |
| Temp Rating | -40.0 CELSIUS NOMINAL AND 74.0 CELSIUS NOMINAL DEGC |
| Media for Which Designed | AIR |
| Material | PLASTIC HEXAFLOROPROPYLENE |
| 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 |
|---|---|
| SE10257 PRIMARY | Circor Aerospace Inc (USA) |
| Reference | Meaning |
|---|---|
| SE10257 | 3/9 Design control — primary reference Circor Aerospace, Inc. Dba Sei Products |
NSN 4820-01-560-2773 is a Disk,valve, manufactured by Circor Aerospace Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-560-2773 has 1 manufacturer part number on file: SE10257 (Circor Aerospace Inc).
Key specifications for SE10257: Temp Rating: -40.0 CELSIUS NOMINAL AND 74.0 CELSIUS NOMINAL DEGC; Special Features: MATERIAL ETHYLENE PROPYLENE.0.625INCHES LONG,0.15625 INCH DIAMETER. PAR T OF MODEL TVS-3 VALVE. TEMPERTURE RATING -40 DEGREE C TO +74 DEGREE C IN; Media for Which Designed: AIR; Part Name Assigned by Controlling Agency: SEAL, TVD AND TVS. 3 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.