NSN 1680-01-556-6973 · NIIN 015566973 · Part number 6540-203
Tyee Aircraft Inc Div Tyee Aircraft · FSC 1680 — Miscellaneous Aircraft Accessories and Components · FSG 16 — Aircraft Components and Accessories · CAGE 34742
Government record, cited
NSN 1680-01-556-6973 — this item is cataloged by the U.S. Government under National Stock Number 1680-01-556-6973. Manufacturer of record part number: 6540-203.
Also searched as1680-01-556-6973 ·
1680015566973 ·
NIIN 015566973 ·
01-556-6973 ·
FSC 1680 Miscellaneous Aircraft Accessories and Components · CAGE 34742 · 6540-203
Manufacturer of record: Tyee Aircraft Inc Div Tyee Aircraft
Identification
NSN: 1680-01-556-6973
NIIN: 015566973
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: 6540-203
Manufacturer: Tyee Aircraft Inc Div Tyee Aircraft
General Description
The Side Brace Assembly, cataloged under National Stock Number 1680-01-556-6973, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Tyee Aircraft Inc Div Tyee Aircraft. 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
1680-01-556-6973
Primary Part Number
6540-203
Item Name
Side Brace Assembly
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 1680-01-556-6973?
NSN 1680-01-556-6973 is a Side Brace Assembly, manufactured by Tyee Aircraft Inc Div Tyee Aircraft, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
What part numbers are listed for NSN 1680-01-556-6973?
NSN 1680-01-556-6973 has 1 manufacturer part number on file: 6540-203 (Tyee Aircraft Inc Div Tyee Aircraft).
What are the specifications of 6540-203?
Key specifications for 6540-203: Part Name Assigned by Controlling Agency: SIDE BRACE ASSEMBLY (INAVY); End Item Identification: F/A-18E. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1680-01-556-6973 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 1680-01-556-6973?
NSN 1680-01-556-6973 has DEMIL Code D. 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.