PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B6106Spring,helical,extension

Stewart Avionics Inc · NSN 5360-00-446-0449 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-446-0449 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-446-0449. Primary manufacturer part number: B6106.
Features
  • Spring,helical,extension — FSC 5360
  • Spring Free Length: 4.541 INCHES MAXIMUM IN
  • Design Type: CLOSED
  • Opening Width: 0.815 INCHES NOMINAL BOTH ENDS IN
  • Load Rating: 50.00 POUNDS NOMINAL LBS
  • Spring Deflection Rate: 101.000 POUNDS PER INCH NOMINAL LBS
  • Coil Quantity: 20-1/2
  • Material Document and Classification: ASTM A227-41 ASSN STD 1ST MATERIAL RESPONSE OR ASTM 229-41 ASSN STD 2ND MATERIAL RESPONSE OVERALL
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Spring,helical,extension, cataloged under National Stock Number 5360-00-446-0449, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Stewart Avionics Inc. Government technical data includes 13 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
NSN5360-00-446-0449
Primary Part NumberB6106
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerStewart Avionics Inc
StatusACTIVE
Spring Free Length4.541 INCHES MAXIMUM IN
Design TypeCLOSED
Opening Width0.815 INCHES NOMINAL BOTH ENDS IN
Load Rating50.00 POUNDS NOMINAL LBS
Spring Deflection Rate101.000 POUNDS PER INCH NOMINAL LBS
Coil Quantity20-1/2
Material Document and ClassificationASTM A227-41 ASSN STD 1ST MATERIAL RESPONSE OR ASTM 229-41 ASSN STD 2ND MATERIAL RESPONSE OVERALL
Surface TreatmentVARNISH OVERALL
Style DesignatorCYLINDRICAL
Spring Length Under Load4.560 INCHES NOMINAL IN
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
Spring Free Outside Diameter0.540 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN
End StyleRAISED HOOK BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5945-00-235-7580A18259 INTERCHANGEABLE
Relay,electromagnetic
Raytheon Company Dba Raytheon Co
3120-00-288-2820G71M214 INTERCHANGEABLE
Bearing,sleeve
Sequa Corp
Cross-Reference Index
Part NumberManufacturer
B6106 PRIMARY Stewart Avionics Inc (USA)
Related Parts
5945-00-235-7580INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
A18259
3120-00-288-2820INTERCHANGEABLE
BEARING,SLEEVE
G71M214

Frequently Asked Questions

What is NSN 5360-00-446-0449?

NSN 5360-00-446-0449 is a Spring,helical,extension, manufactured by Stewart Avionics Inc, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-446-0449?

NSN 5360-00-446-0449 has 1 cross-referenced part number: B6106 (Stewart Avionics Inc).

What NSN replaces 5360-00-446-0449?

There are 2 known substitutes for 5360-00-446-0449: 5945-00-235-7580, 3120-00-288-2820. Verify interchangeability with system specifications before substitution.

What are the specifications of B6106?

Key specifications for B6106: Spring Free Length: 4.541 INCHES MAXIMUM IN; Design Type: CLOSED; Opening Width: 0.815 INCHES NOMINAL BOTH ENDS IN; Load Rating: 50.00 POUNDS NOMINAL LBS. 13 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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