NSN 4820-01-520-4361 · NIIN 015204361 · Part number B43810-1
Mission Systems Orchard Park Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 04577
Government record, cited
NSN 4820-01-520-4361 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-520-4361. Manufacturer of record part number: B43810-1.
Manufacturer of record: Mission Systems Orchard Park Inc
Identification
NSN: 4820-01-520-4361
NIIN: 015204361
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: B43810-1
Manufacturer: Mission Systems Orchard Park Inc
General Description
The Disk,valve, cataloged under National Stock Number 4820-01-520-4361, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mission Systems Orchard Park Inc. 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. Current acquisition status: Active.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-520-4361?
NSN 4820-01-520-4361 is a Disk,valve, manufactured by Mission Systems Orchard Park Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-520-4361?
NSN 4820-01-520-4361 has 2 manufacturer part numbers on file: B43810-1 (Mission Systems Orchard Park Inc), B16511-3 ITEM 2 (Mission Systems Orchard Park Inc).
What are the specifications of B43810-1?
Key specifications for B43810-1: Style Designator: POPPET; Special Features: MEDIA: HFC-236FA REFRIGERENT OR ISO 46 POE LUBRICANT. MANUFACTURER CALLS THIS BACK PRESSURE INSENSITIVE RELIEF VALVE.; Media for Which Designed: AIR OR GREASE; End Item Identification: 4820-01-520-4351 SAFETY RELIEF VALVE. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-520-4361 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.