PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

65973Lock,ring Gear Circ

Textron Lycoming Inc Williamsport Plant · NSN 2810-00-213-1870 · FSC 2810 · No Item Name Available
Verified by PartsTable
NSN 2810-00-213-1870 — this item is cataloged by the U.S. Government under National Stock Number 2810-00-213-1870. Primary manufacturer part number: 65973.
Features
  • Lock,ring Gear Circ — FSC 2810
  • 2 verified cross-references
  • Primary manufacturer: Textron Lycoming Inc Williamsport Plant
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Lock,ring Gear Circ, cataloged under National Stock Number 2810-00-213-1870, is classified within Federal Supply Class 2810 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Textron Lycoming Inc Williamsport Plant. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameLock,ring Gear Circ
FSC / FSG2810 — No Item Name Available (FSG 28)
ManufacturersSatair A/s (CAGE R1120); Textron Lycoming Inc Williamsport Plant (CAGE 80254)
Technical Specifications
ParameterValue
NSN2810-00-213-1870
Primary Part Number65973
Item NameLock,ring Gear Circ
FSC / FSG2810 / 28 — No Item Name Available
ManufacturerTextron Lycoming Inc Williamsport Plant
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6150-00-006-09924025T74P03 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense
5136-01-727-389765973 INTERCHANGEABLE
Die,thread Cutting
Tapco Cutting Tools Inc
Cross-Reference Index
Part NumberManufacturer
65973 Satair A/s (DNK)
65973 PRIMARY Textron Lycoming Inc Williamsport Plant (USA)
Related Parts
6150-00-006-0992INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
4025T74P03
5136-01-727-3897INTERCHANGEABLE
DIE,THREAD CUTTING
65973

Frequently Asked Questions

What is NSN 2810-00-213-1870?

NSN 2810-00-213-1870 is a Lock,ring Gear Circ, manufactured by Textron Lycoming Inc Williamsport Plant, classified under FSC 2810 (No Item Name Available). Status: active.

What are the part numbers for NSN 2810-00-213-1870?

NSN 2810-00-213-1870 has 2 cross-referenced part numbers: 65973 (Satair A/s), 65973 (Textron Lycoming Inc Williamsport Plant).

What NSN replaces 2810-00-213-1870?

There are 2 known substitutes for 2810-00-213-1870: 6150-00-006-0992, 5136-01-727-3897. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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