NSN 4820-01-502-1919 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-502-1919. Manufacturer of record part number: 2101560-003.
The Local Act. Assy, cataloged under National Stock Number 4820-01-502-1919, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Transdigm Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Local Act. Assy
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Transdigm Inc (CAGE 04638)
Technical Specifications
Parameter
Value
NSN
4820-01-502-1919
Primary Part Number
2101560-003
Item Name
Local Act. Assy
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Transdigm Inc
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-502-25232102581-001POSSIBLE MATCH
GEAR OPERATOR,VALVE
Possible match (shared part number)Aerocontrolex Group, Inc.
4820-01-502-40252101355-001POSSIBLE MATCH
COUPLING,ACTUATOR-HANDWHEEL,VALV
Possible match (shared part number)Aerocontrolex Group, Inc.
4820-01-503-14812102581-002POSSIBLE MATCH
GEAR OPERATOR,VALVE
Possible match (shared part number)Aerocontrolex Group, Inc.
3040-01-503-27781605740-0420POSSIBLE MATCH
CABLE ASSEMBLY,CONTROL
Possible match (shared part number)Aerocontrolex Group, Inc.
C/1Advisory reference — outside the item-of-supply concept
U.S. Government activity
2102581 ITEM NO.7.2
5/9Secondary reference
U.S. Government activity
201560-003
5/9Secondary reference
U.S. Government activity
Related Parts
4820-01-502-2523POSSIBLE MATCH
GEAR OPERATOR,VALVE
2102581-001
4820-01-502-4025POSSIBLE MATCH
COUPLING,ACTUATOR-HANDWHEEL,VALV
2101355-001
4820-01-503-1481POSSIBLE MATCH
GEAR OPERATOR,VALVE
2102581-002
3040-01-503-2778POSSIBLE MATCH
CABLE ASSEMBLY,CONTROL
1605740-0420
Frequently Asked Questions
What is NSN 4820-01-502-1919?
NSN 4820-01-502-1919 is a Local Act. Assy, manufactured by Transdigm Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-502-1919?
NSN 4820-01-502-1919 has 1 manufacturer part number on file: 2101560-003 (Transdigm Inc).
What NSN replaces 4820-01-502-1919?
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-502-2523, 4820-01-502-4025, 4820-01-503-1481. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-502-1919 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.