PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

643143-4Spacer,ring

Raytheon Company Dba Raytheon · NSN 5365-00-235-2740 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-00-235-2740 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-235-2740. Primary manufacturer part number: 643143-4.
Features
  • Spacer,ring — FSC 5365
  • Overall Thickness: 0.045 INCHES NOMINAL IN
  • Outside Diameter: 6.675 INCHES NOMINAL IN
  • Inside Diameter: 5.620 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Raytheon Company Dba Raytheon
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Spacer,ring, cataloged under National Stock Number 5365-00-235-2740, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Raytheon Company Dba Raytheon. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5365-00-235-2740
Primary Part Number643143-4
Item NameSpacer,ring
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Overall Thickness0.045 INCHES NOMINAL IN
Outside Diameter6.675 INCHES NOMINAL IN
Inside Diameter5.620 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
9920-00-515-850121614-4 INTERCHANGEABLE
Ashtray
B/e Aerospace Inc Dba Interturbine
Cross-Reference Index
Part NumberManufacturer
643143-4 PRIMARY Raytheon Company Dba Raytheon (USA)
Related Parts
9920-00-515-8501INTERCHANGEABLE
ASHTRAY
21614-4

Frequently Asked Questions

What is NSN 5365-00-235-2740?

NSN 5365-00-235-2740 is a Spacer,ring, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-00-235-2740?

NSN 5365-00-235-2740 has 1 cross-referenced part number: 643143-4 (Raytheon Company Dba Raytheon).

What NSN replaces 5365-00-235-2740?

There is 1 known substitute for 5365-00-235-2740: 9920-00-515-8501. Verify interchangeability with system specifications before substitution.

What are the specifications of 643143-4?

Key specifications for 643143-4: Overall Thickness: 0.045 INCHES NOMINAL IN; Outside Diameter: 6.675 INCHES NOMINAL IN; Inside Diameter: 5.620 INCHES NOMINAL IN. 3 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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