PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6-50463Spacer,ring

The Boeing Company Div Defense · NSN 5365-01-434-6373 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-01-434-6373 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-434-6373. Primary manufacturer part number: 6-50463.
Features
  • Spacer,ring — FSC 5365
  • Inside Diameter: 4.500 INCHES NOMINAL IN
  • Outside Diameter: 5.230 INCHES MINIMUM AND 5.240 INCHES MAXIMUM IN
  • Material: STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 4135 OR STEEL COMP 4140
  • Overall Thickness: 0.208 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN
  • Material Document and Classification: QQ-S-685 FED SPEC SINGLE MATERIAL RESPONSE OR AN-S-12 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-T-6735 MIL SPEC SINGLE MATERIAL RESPONSE OR AMS6381 ASSN STD SINGLE MATERIAL RESPONSE
  • 1 verified cross-reference
  • Primary manufacturer: The Boeing Company Div Defense
Applications
  • Applications requiring Steel Comp 4130 or Steel Comp 8630 or Steel Comp 4135 or Steel Comp 4140 construction
General Description

The Spacer,ring, cataloged under National Stock Number 5365-01-434-6373, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 5 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-01-434-6373
Primary Part Number6-50463
Item NameSpacer,ring
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Inside Diameter4.500 INCHES NOMINAL IN
Outside Diameter5.230 INCHES MINIMUM AND 5.240 INCHES MAXIMUM IN
MaterialSTEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 4135 OR STEEL COMP 4140
Overall Thickness0.208 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN
Material Document and ClassificationQQ-S-685 FED SPEC SINGLE MATERIAL RESPONSE OR AN-S-12 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-T-6735 MIL SPEC SINGLE MATERIAL RESPONSE OR AMS6381 ASSN STD SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2920-00-085-3595650463 INTERCHANGEABLE
Generator,engine Accessory
Hyster-Yale Group, Inc. Dba Yale Materials Handling
5905-00-258-1242503-9382-003 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
Cross-Reference Index
Part NumberManufacturer
6-50463 PRIMARY The Boeing Company Div Defense (USA)
Related Parts
2920-00-085-3595INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
650463
5905-00-258-1242INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
503-9382-003

Frequently Asked Questions

What is NSN 5365-01-434-6373?

NSN 5365-01-434-6373 is a Spacer,ring, manufactured by The Boeing Company Div Defense, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-01-434-6373?

NSN 5365-01-434-6373 has 1 cross-referenced part number: 6-50463 (The Boeing Company Div Defense).

What NSN replaces 5365-01-434-6373?

There are 2 known substitutes for 5365-01-434-6373: 2920-00-085-3595, 5905-00-258-1242. Verify interchangeability with system specifications before substitution.

What are the specifications of 6-50463?

Key specifications for 6-50463: Inside Diameter: 4.500 INCHES NOMINAL IN; Special Features: HEAT TREAT 125,000-145,000 PSI; ORIGINAL NAME - SPACER; Outside Diameter: 5.230 INCHES MINIMUM AND 5.240 INCHES MAXIMUM IN; Material: STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 4135 OR STEEL COMP 4140. 7 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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