The Valve,ball, cataloged under National Stock Number 4820-01-439-5428, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cooper Surgical. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-439-5428 |
| Primary Part Number | 21365 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cooper Surgical |
| Status | ACTIVE |
| 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 |
|---|---|
| 21365 PRIMARY | Cooper Surgical (USA) |
NSN 4820-01-439-5428 is a Valve,ball, manufactured by Cooper Surgical, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-439-5428 has 1 manufacturer part number on file: 21365 (Cooper Surgical).
1 possible match (shared part number, not a government interchangeability claim): 4210-01-600-5505. Verify interchangeability with system specifications before substitution.
Key specifications for 21365: Special Features: 3-WAY VALVE; END ITEM APPLICATION 6515-01-414-3607; CRYOSURGICAL SYSTEM; MODEL GE-2000. 0 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.