NSN 4820-01-166-0998 · NIIN 011660998 · Part number CYLB 50712
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 05624
Government record, cited
NSN 4820-01-166-0998 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-166-0998. Manufacturer of record part number: CYLB 50712.
Operating Pressure: 20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Size: 4.000 INCHES IN
Maximum Operating Temp: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF
Disk Loading Method: SPRING
Mounting Facility: BRACKET(S)
Identification
NSN: 4820-01-166-0998
NIIN: 011660998
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: CYLB 50712
Manufacturer: Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
General Description
The Valve,check, cataloged under National Stock Number 4820-01-166-0998, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ge Aviation Systems Llc Dba Ge Aviation Systems Llc. Government technical data includes 9 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-166-0998
Primary Part Number
CYLB 50712
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
Status
ACTIVE
Flow Control Device
DISK
Style Designator
STRAIGHT THRU
Operating Pressure
20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (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 4820-01-166-0998?
NSN 4820-01-166-0998 is a Valve,check, manufactured by Ge Aviation Systems Llc Dba Ge Aviation Systems Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-166-0998?
NSN 4820-01-166-0998 has 1 manufacturer part number on file: CYLB 50712 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc).
What are the specifications of CYLB 50712?
Key specifications for CYLB 50712: Flow Control Device: DISK; Style Designator: STRAIGHT THRU; Operating Pressure: 20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Valve Size: 4.000 INCHES IN. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-166-0998 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.