FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories
General Description
The Gear,internal,rotar, cataloged under National Stock Number 1680-00-331-3519, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
Gear,internal,rotar
FSC / FSG
1680 — Miscellaneous Aircraft Accessories and Components (FSG 16)
Technical Specifications
Parameter
Value
NSN
1680-00-331-3519
Item Name
Gear,internal,rotar
FSC / FSG
1680 / 16 — Miscellaneous Aircraft Accessories and Components
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL Q — CCL Item — Commerce Control List
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5355-00-515-5078107179POSSIBLE MATCH
WINDOW,DIAL
Possible match (shared part number)Bei Sensors & Systems Company, Inc. Dba Bei Duncan
5945-00-739-7420401-1405-000POSSIBLE MATCH
RELAY,ELECTROMAGNETIC
Possible match (shared part number)Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
3020-00-981-8138107179POSSIBLE MATCH
GEAR CLUSTER
Possible match (shared part number)General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems
5331-01-226-4446107-179POSSIBLE MATCH
O-RING
Possible match (shared part number)Graco Inc.
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
107179
3/9Design control — primary reference
Meggitt North Hollywood Inc
Related Parts
5355-00-515-5078POSSIBLE MATCH
WINDOW,DIAL
107179
5945-00-739-7420POSSIBLE MATCH
RELAY,ELECTROMAGNETIC
401-1405-000
3020-00-981-8138POSSIBLE MATCH
GEAR CLUSTER
107179
5331-01-226-4446POSSIBLE MATCH
O-RING
107-179
Frequently Asked Questions
What is NSN 1680-00-331-3519?
NSN 1680-00-331-3519 is a Gear,internal,rotar, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
What NSN replaces 1680-00-331-3519?
4 possible matches (shared part number, not a government interchangeability claim): 5355-00-515-5078, 5945-00-739-7420, 3020-00-981-8138. Verify interchangeability with system specifications before substitution.
Is NSN 1680-00-331-3519 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.
What is the DEMIL code for NSN 1680-00-331-3519?
NSN 1680-00-331-3519 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.