Valve, Check 4820-01-596-2221 NSN 4820-01-596-2221 · NIIN 015962221 · Part number M6164-4
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 78286
NSN 4820-01-596-2221 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-596-2221. Manufacturer of record part number: M6164-4 .
Also searched as
4820-01-596-2221 ·
4820015962221 ·
NIIN 015962221 ·
01-596-2221 ·
FSC 4820 Valves, Nonpowered · CAGE 78286 · M6164-4
Nearby stock numbers
← 4820-01-596-2220 Valve, Check
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4820-01-596-2222 Valve, Check →
4820-01-596-2221 — Valves, Nonpowered
Features
Valve,check — FSC 4820 1 manufacturer part number on file Manufacturer of record: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Identification
NSN: 4820-01-596-2221
NIIN: 015962221
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: M6164-4
Manufacturer: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
General Description
The Valve,check, cataloged under National Stock Number 4820-01-596-2221, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name Valve,check FSC / FSG 4820 — Valves, Nonpowered (FSG 48) Manufacturers Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (CAGE 78286)
Technical Specifications
Parameter Value NSN 4820-01-596-2221 Primary Part Number M6164-4 Item Name Valve,check FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp Status ACTIVE
Lifecycle & Compliance
Acquisition Status ACTIVE DEMIL Code DEMIL A — No Demilitarization Required Hazard No hazard code in the DLA record (HMIC N) Criticality Code X
Cross-Reference Index
Part Number Manufacturer
M6164-4 PRIMARY Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
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 4820-01-596-2221?
NSN 4820-01-596-2221 is a Valve,check, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-596-2221?
NSN 4820-01-596-2221 has 1 manufacturer part number on file: M6164-4 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Is NSN 4820-01-596-2221 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.
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