The Gear Operator,valve, cataloged under National Stock Number 4820-01-519-7774, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-519-7774
Item Name
Gear Operator,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
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
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-519-78342102210-031POSSIBLE MATCH
GEAR OPERATOR,VALVE
Possible match (shared part number)Aerocontrolex Group, Inc.
4820-01-519-78442102210-025POSSIBLE MATCH
GEAR OPERATOR,VALVE
Possible match (shared part number)Aerocontrolex Group, Inc.
4820-01-519-78472102210-002POSSIBLE MATCH
GEAR OPERATOR,VALVE
Possible match (shared part number)Aerocontrolex Group, Inc.
4820-01-519-78502102210-003POSSIBLE MATCH
GEAR OPERATOR,VALVE
Possible match (shared part number)Aerocontrolex Group, Inc.
4820-01-519-78552102210-001POSSIBLE MATCH
GEAR OPERATOR,VALVE
Possible match (shared part number)Aerocontrolex Group, Inc.
4820-01-519-78592102210-026POSSIBLE MATCH
GEAR OPERATOR,VALVE
Possible match (shared part number)Aerocontrolex Group, Inc.
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
2102210
D/9Drawing number reference only
U.S. Government activity
2102210-052
3/2Design control — primary reference
U.S. Government activity
Related Parts
4820-01-519-7834POSSIBLE MATCH
GEAR OPERATOR,VALVE
2102210-031
4820-01-519-7844POSSIBLE MATCH
GEAR OPERATOR,VALVE
2102210-025
4820-01-519-7847POSSIBLE MATCH
GEAR OPERATOR,VALVE
2102210-002
4820-01-519-7850POSSIBLE MATCH
GEAR OPERATOR,VALVE
2102210-003
4820-01-519-7855POSSIBLE MATCH
GEAR OPERATOR,VALVE
2102210-001
4820-01-519-7859POSSIBLE MATCH
GEAR OPERATOR,VALVE
2102210-026
Frequently Asked Questions
What is NSN 4820-01-519-7774?
NSN 4820-01-519-7774 is a Gear Operator,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-519-7774?
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-519-7834, 4820-01-519-7844, 4820-01-519-7847. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-519-7774?
Key specifications for 4820-01-519-7774: Part Name Assigned by Controlling Agency: QTR-TURN ROG KIT; End Item Identification: VALVE NUMBER 4-183-4. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-519-7774 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.