PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

74979Crankshaft Assembly

Textron Lycoming Inc Williamsport Plant · NSN 2810-00-147-0991 · FSC 2810 · No Item Name Available
Verified by PartsTable
NSN 2810-00-147-0991 — this item is cataloged by the U.S. Government under National Stock Number 2810-00-147-0991. Primary manufacturer part number: 74979.
Features
  • Crankshaft Assembly — FSC 2810
  • 2 verified cross-references
  • Primary manufacturer: Textron Lycoming Inc Williamsport Plant
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Crankshaft Assembly, cataloged under National Stock Number 2810-00-147-0991, 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 NameCrankshaft Assembly
FSC / FSG2810 — No Item Name Available (FSG 28)
ManufacturersTextron Lycoming Inc Williamsport Plant (CAGE 80254); Satair A/s (CAGE R1120)
Technical Specifications
ParameterValue
NSN2810-00-147-0991
Primary Part Number74979
Item NameCrankshaft Assembly
FSC / FSG2810 / 28 — No Item Name Available
ManufacturerTextron Lycoming Inc Williamsport Plant
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-00-579-649500008-447 INTERCHANGEABLE
O-Ring
Raytheon Company Dba Raytheon Co
2915-00-977-105174979 INTERCHANGEABLE
Insert,solenoid Val
Triumph Engine Control Systems Llc
Cross-Reference Index
Part NumberManufacturer
74979 PRIMARY Textron Lycoming Inc Williamsport Plant (USA)
74979 Satair A/s (DNK)
Related Parts
5331-00-579-6495INTERCHANGEABLE
O-RING
00008-447
2915-00-977-1051INTERCHANGEABLE
INSERT,SOLENOID VAL
74979

Frequently Asked Questions

What is NSN 2810-00-147-0991?

NSN 2810-00-147-0991 is a Crankshaft Assembly, manufactured by Textron Lycoming Inc Williamsport Plant, classified under FSC 2810 (No Item Name Available). Status: active.

What are the part numbers for NSN 2810-00-147-0991?

NSN 2810-00-147-0991 has 2 cross-referenced part numbers: 74979 (Textron Lycoming Inc Williamsport Plant), 74979 (Satair A/s).

What NSN replaces 2810-00-147-0991?

There are 2 known substitutes for 2810-00-147-0991: 5331-00-579-6495, 2915-00-977-1051. Verify interchangeability with system specifications before substitution.

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