PartsTable TECHNICAL DATA SHEET
NSN 3010-01-261-5102Government record, cited

Insert, Flexible Coupling3010-01-261-5102

NSN 3010-01-261-5102 · NIIN 012615102 · Part number 6406K61
Mcmaster-Carr Supply Co · FSC 3010 — Torque Converters and Speed Changers · FSG 30 — Mechanical Power Transmission Equipment · CAGE 39428
Government record, cited
NSN 3010-01-261-5102 — this item is cataloged by the U.S. Government under National Stock Number 3010-01-261-5102. Manufacturer of record part number: 6406K61.
Also searched as  3010-01-261-5102 · 3010012615102 · NIIN 012615102 · 01-261-5102 · FSC 3010 Torque Converters and Speed Changers · CAGE 39428 · 6406K61
Nearby stock numbers  ·
Features
  • Insert,flexible Coupling — FSC 3010
  • Style Designator: MULTIPLE HOLES, ROUND BORE
  • Overall Outside Diameter: 2.125 INCHES NOMINAL IN
  • 1 manufacturer part number on file
  • Manufacturer of record: Mcmaster-Carr Supply Co
Identification
  • NSN: 3010-01-261-5102
  • NIIN: 012615102
  • FSC: 3010 — Torque Converters and Speed Changers
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 6406K61
  • Manufacturer: Mcmaster-Carr Supply Co
General Description

The Insert,flexible Coupling, cataloged under National Stock Number 3010-01-261-5102, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 2 specifications, 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
ParameterValue
NSN3010-01-261-5102
Primary Part Number6406K61
Item NameInsert,flexible Coupling
FSC / FSG3010 / 30 — Torque Converters and Speed Changers
ManufacturerMcmaster-Carr Supply Co
StatusACTIVE
Style DesignatorMULTIPLE HOLES, ROUND BORE
Overall Outside Diameter2.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
6406K61 PRIMARY Mcmaster-Carr Supply Co (USA)
No interchangeability data on file.
Other items in FSC 3010 — Torque Converters and Speed Changers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3010-00-001-0013
3010-00-001-0013 · Item name not on file
3010-00-001-0067
3010-00-001-0067 · Item name not on file
3010-00-001-0069
3010-00-001-0069 · Item name not on file
3010-00-001-0095
3010-00-001-0095 · Item name not on file
3010-00-001-1239
3010-00-001-1239 · Item name not on file
3010-00-001-1689
3010-00-001-1689 · Item name not on file
3010-00-001-2168
3010-00-001-2168 · Item name not on file
3010-00-001-2173
3010-00-001-2173 · Item name not on file

Frequently Asked Questions

What is NSN 3010-01-261-5102?

NSN 3010-01-261-5102 is a Insert,flexible Coupling, manufactured by Mcmaster-Carr Supply Co, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.

What part numbers are listed for NSN 3010-01-261-5102?

NSN 3010-01-261-5102 has 1 manufacturer part number on file: 6406K61 (Mcmaster-Carr Supply Co).

What are the specifications of 6406K61?

Key specifications for 6406K61: Style Designator: MULTIPLE HOLES, ROUND BORE; Overall Outside Diameter: 2.125 INCHES NOMINAL IN; Special Features: MATL-LEATHER. 2 specifications are documented in the U.S. Government catalog.

Is NSN 3010-01-261-5102 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.
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