PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66-1178Bolt,trunnion Collar

The Boeing Company Div Commercial · NSN 1620-00-911-8306 · FSC 1620 · No Item Name Available
Verified by PartsTable
NSN 1620-00-911-8306 — this item is cataloged by the U.S. Government under National Stock Number 1620-00-911-8306. Primary manufacturer part number: 66-1178.
Features
  • Bolt,trunnion Collar — FSC 1620
  • FSC Application Data: MAIN LANDING GEAR
  • General Characteristics Item Description: STEEL AMS6407 PER D-18462;7.880 IN.LG;1.750 IN.DIA IN
  • Criticality Code Justification: FEAT
  • 2 verified cross-references
  • Primary manufacturer: The Boeing Company Div Commercial
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Bolt,trunnion Collar, cataloged under National Stock Number 1620-00-911-8306, is classified within Federal Supply Class 1620 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is The Boeing Company Div Commercial. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1620-00-911-8306
Primary Part Number66-1178
Item NameBolt,trunnion Collar
FSC / FSG1620 / 16 — No Item Name Available
ManufacturerThe Boeing Company Div Commercial
StatusACTIVE
FSC Application DataMAIN LANDING GEAR
General Characteristics Item DescriptionSTEEL AMS6407 PER D-18462;7.880 IN.LG;1.750 IN.DIA IN
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5950-00-474-5610661178 INTERCHANGEABLE
Transformer,radio Frequency
Lockheed Martin Corporation Div Rms - Mitchel Field
Cross-Reference Index
Part NumberManufacturer
66-1178 The Boeing Company Div Defense (USA)
66-1178 PRIMARY The Boeing Company Div Commercial (USA)
Related Parts
5950-00-474-5610INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
661178

Frequently Asked Questions

What is NSN 1620-00-911-8306?

NSN 1620-00-911-8306 is a Bolt,trunnion Collar, manufactured by The Boeing Company Div Commercial, classified under FSC 1620 (No Item Name Available). Status: active.

What are the part numbers for NSN 1620-00-911-8306?

NSN 1620-00-911-8306 has 2 cross-referenced part numbers: 66-1178 (The Boeing Company Div Defense), 66-1178 (The Boeing Company Div Commercial).

What NSN replaces 1620-00-911-8306?

There is 1 known substitute for 1620-00-911-8306: 5950-00-474-5610. Verify interchangeability with system specifications before substitution.

What are the specifications of 66-1178?

Key specifications for 66-1178: FSC Application Data: MAIN LANDING GEAR; Special Features: TOLERANCES AND DIMENSIONS; General Characteristics Item Description: STEEL AMS6407 PER D-18462;7.880 IN.LG;1.750 IN.DIA IN; Criticality Code Justification: FEAT. 5 total characteristics are documented in the Federal Logistics Information System.

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