A77B490-1

Spring, Helical, Extension

Part number

A77B490-1

NSN

5360-00-115-3018

NIIN

00-115-3018

Item name

Spring, Helical, Extension

Manufacturer

Telex Communications Inc.

CAGE code

28856

FSC

5360

Unit of issue

EA

DEMIL code

A

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Alternate part numbers

• A77B490-1 CAGE 28856
• A77B490-1 CAGE 92400

Technical characteristics

Inside Diameter

0.154 inches nominal

Opening Width

0.219 inches nominal first end

End Style

Full loop second end

End Style

Raised hook first end

Spring Free Length

1.348 inches nominal

Coil Quantity

37

Design Type

Closed

Coil Helix Direction

Right-hand or left-hand

Spring Deflection Rate

90.000 pounds per inch nominal

Spring Free Outside Diameter

0.190 inches nominal

Hook Radius

0.070 inches nominal both ends

Coil to Hook Inside Length

0.218 inches nominal both ends

Material

Steel overall

Surface Treatment

Tin overall

Style Designator

Cylindrical

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