NSN 1680-01-687-1880 — this item is cataloged by the U.S. Government under National Stock Number 1680-01-687-1880. Manufacturer of record part number: 4166AS0866-01.
Also searched as1680-01-687-1880 ·
1680016871880 ·
NIIN 016871880 ·
01-687-1880 ·
FSC 1680 Miscellaneous Aircraft Accessories and Components · CAGE 3CC53 · 4166AS0866-01
Nearby stock numbers← 1680-01-687-1772 Cushion, Seat, Aircraft
·
1680-01-687-1889 Top Stop Unit →
Features
Support Link Unit — FSC 1680
Criticality Code Justification: AGAV
1 manufacturer part number on file
Manufacturer of record: Safe Inc
Identification
NSN: 1680-01-687-1880
NIIN: 016871880
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: 4166AS0866-01
Manufacturer: Safe Inc
General Description
The Support Link Unit, cataloged under National Stock Number 1680-01-687-1880, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Safe Inc. Government technical data includes 1 specification, 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
1680-01-687-1880
Primary Part Number
4166AS0866-01
Item Name
Support Link Unit
FSC / FSG
1680 / 16 — Miscellaneous Aircraft Accessories and Components
Other items in FSC 1680 — Miscellaneous Aircraft Accessories and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1680-00-001-1736
DUCT ASSEMBLY,BRANCHED
1680-00-003-3721
1680-00-003-3721 · Item name not on file
1680-00-009-3782
PISTON,EJECTOR,INNER
1680-00-009-6180
1680-00-009-6180 · Item name not on file
1680-00-475-0002
TIP,RUBBER CONTROL
1680-00-696-6170
ADAPTER,SCREW END A
1680-00-867-7158
COVER,GEARCASE
1680-00-885-0923
KNOB ASSY,LANDING G
Frequently Asked Questions
What is NSN 1680-01-687-1880?
NSN 1680-01-687-1880 is a Support Link Unit, manufactured by Safe Inc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
What part numbers are listed for NSN 1680-01-687-1880?
NSN 1680-01-687-1880 has 1 manufacturer part number on file: 4166AS0866-01 (Safe Inc).
What are the specifications of 4166AS0866-01?
Key specifications for 4166AS0866-01: Criticality Code Justification: AGAV; Special Features: ADJUSTABLE SUPPORT LINK; End Item Identification: MH60S KNIGHTHAWK. 1 specification is documented in the U.S. Government catalog.
Is NSN 1680-01-687-1880 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.