NSN 4820-01-082-1433 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-082-1433. Manufacturer of record part number: MC12549.
Also searched as4820-01-082-1433 ·
4820010821433 ·
NIIN 010821433 ·
01-082-1433 ·
FSC 4820 Valves, Nonpowered · CAGE 76050 · MC12549
Flange Seat to Disk End Height: 0.210 INCHES NOMINAL IN
Style Designator: POPPET
Tip Diameter: 0.088 INCHES NOMINAL IN
Seat Angle: 45.0 DEGREES NOMINAL
Under Flange Height: 0.720 INCHES NOMINAL IN
Material: STEEL CORROSION RESISTING
Identification
NSN: 4820-01-082-1433
NIIN: 010821433
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: MC12549
Manufacturer: Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace
General Description
The Disk,valve, cataloged under National Stock Number 4820-01-082-1433, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace. Government technical data includes 7 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
4820-01-082-1433
Primary Part Number
MC12549
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace
Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace (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 4820-01-082-1433?
NSN 4820-01-082-1433 is a Disk,valve, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-082-1433?
NSN 4820-01-082-1433 has 1 manufacturer part number on file: MC12549 (Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace).
What are the specifications of MC12549?
Key specifications for MC12549: Shank Diameter: 0.250 INCHES NOMINAL IN; Flange Seat to Disk End Height: 0.210 INCHES NOMINAL IN; Overall Height: 0.995 INCHES NOMINAL IN; Style Designator: POPPET. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-082-1433 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.