Extension Helical Spring

Model / MPN: 56191 | NSN: 5360-00-201-2031

An open-or close-coiled spring, wound in various forms and from different shapes and types of materials and finished at the ends, so designed to provide resistance to pulling forces. The close-coiled springs may incorporate the special feature of initial tension created between the coils when wound so that an initial load must be applied to separate them. Excludes spring, reinforcing, hose.

Product Details

NATO Stock Number

5360-00-201-2031

Sold in multiples of

50 EA

DEMIL

Inside Diameter

Between 0.399 inches and 0.409 inches

Opening Width

0.125 inches first end

Opening Width

0.313 inches both ends

End Style

Machine loop second end

End Style

Machined half loop first end

Spring Free Length

2.707 inches

Coil Quantity

Design Type

Closed

Coil Helix Direction

Right-hand or left-hand

Spring Deflection Rate

Between 13.800 pounds per inch and 16.800 pounds per inch

Spring Free Outside Diameter

Between 0.543 inches and 0.553 inches

Hook Radius

0.250 inches both ends

Coil To Hook Inside Length

0.438 inches second end

Material

Steel

Style Designator

Cylindrical

56191 Series Parts

Solicitations

Solicitation	Description	Qty	UOM	Close Date
SPE5EK18T7371	Spring, Helical, Exte	72	EA	04/19/2018

Pricing and Availability

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56191 Cross Reference

PM76
WUD140
PM76M
PM76A
E516
JHP110-133