NSN 1680-01-502-4726 · NIIN 015024726 · Part number CSR523-3-1
Fastener Innovation Technology, Inc. Dba F I T · FSC 1680 — Miscellaneous Aircraft Accessories and Components · FSG 16 — Aircraft Components and Accessories · CAGE 58998
Government record, cited
NSN 1680-01-502-4726 — this item is cataloged by the U.S. Government under National Stock Number 1680-01-502-4726. Manufacturer of record part number: CSR523-3-1.
Also searched as1680-01-502-4726 ·
1680015024726 ·
NIIN 015024726 ·
01-502-4726 ·
FSC 1680 Miscellaneous Aircraft Accessories and Components · CAGE 58998 · CSR523-3-1
Manufacturer of record: Fastener Innovation Technology, Inc. Dba F I T
Identification
NSN: 1680-01-502-4726
NIIN: 015024726
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: CSR523-3-1
Manufacturer: Fastener Innovation Technology, Inc. Dba F I T
General Description
The Retainer,aircraft,m, cataloged under National Stock Number 1680-01-502-4726, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Fastener Innovation Technology, Inc. Dba F I T. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Retainer,aircraft,m
FSC / FSG
1680 — Miscellaneous Aircraft Accessories and Components (FSG 16)
Manufacturers
Fastener Innovation Technology, Inc. Dba F I T (CAGE 58998)
Technical Specifications
Parameter
Value
NSN
1680-01-502-4726
Primary Part Number
CSR523-3-1
Item Name
Retainer,aircraft,m
FSC / FSG
1680 / 16 — Miscellaneous Aircraft Accessories and Components
Fastener Innovation Technology, Inc. Dba F I T (USA)
No interchangeability data on file.
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 1680-01-502-4726?
NSN 1680-01-502-4726 is a Retainer,aircraft,m, manufactured by Fastener Innovation Technology, Inc. Dba F I T, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
What part numbers are listed for NSN 1680-01-502-4726?
NSN 1680-01-502-4726 has 1 manufacturer part number on file: CSR523-3-1 (Fastener Innovation Technology, Inc. Dba F I T).
Is NSN 1680-01-502-4726 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.