NSN 4820-01-266-6793 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-266-6793. Manufacturer of record part number: 75580-1.
The Valve,float, cataloged under National Stock Number 4820-01-266-6793, 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 Valve & Actuator. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-266-6793
Primary Part Number
75580-1
Item Name
Valve,float
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
Status
ACTIVE
Flow Control Device
PISTON
Flange Shape
ROUND ALL ENDS
Connection Type
FLANGE ALL ENDS
Style Designator
STRAIGHT THRU
Operating Pressure
150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Media for Which Designed
AIR SINGLE RESPONSE
Material
COPPER ALLOY BODY
Material
STEEL FLOW CONTROL DEVICE
Valve Operation Method
MANUAL
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
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-269-939375600-1POSSIBLE MATCH
FLOAT,VALVE
Possible match (shared part number)Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
4820-01-269-944675608POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
4810-01-269-944975607POSSIBLE MATCH
PISTON,VALVE
Possible match (shared part number)Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
4820-01-269-945475657POSSIBLE MATCH
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
Possible match (shared part number)Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
4820-01-281-743575596POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
4330-01-570-8710755801POSSIBLE MATCH
FILTER ASSEMBLY,FLUID
Possible match (shared part number)Northrop Grumman Systems Corporation
5985-01-650-68827558-01POSSIBLE MATCH
COUPLER,ANTENNA
Possible match (shared part number)Tech Resources, Inc
NSN 4820-01-266-6793 is a Valve,float, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-266-6793?
NSN 4820-01-266-6793 has 2 manufacturer part numbers on file: 75580 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator), 75580-1 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator).
What NSN replaces 4820-01-266-6793?
7 possible matches (shared part number, not a government interchangeability claim): 4820-01-269-9393, 4820-01-269-9446, 4810-01-269-9449. Verify interchangeability with system specifications before substitution.
What are the specifications of 75580-1?
Key specifications for 75580-1: Flow Control Device: PISTON; Flange Shape: ROUND ALL ENDS; Connection Type: FLANGE ALL ENDS; Style Designator: STRAIGHT THRU. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-266-6793 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.