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Elastics/Cord

Details
Category: Elastics/Cord
Created: Wednesday, 08 July 2009 02:03

This area is to show examples of Military Elastics and Cords including specs.

GSI WOVEN ELASTICS: <www.geraldschwartzinc.com>

Gerald Schwartz carries a good color selection. Things worth noting include: Coyote is more of a darker tan so M Coyote is what most people consider "Coyote." The Camo 483 is also fairly desaturated compared to the other camo 483 materials resulting in a smoke green look.

OWF ELASTICS: <www.owfinc.com>

Outdoor Wilderness Fabrics Inc. elastics sample card. Non-mil colors however can see some differences between woven, braid, and knit.

MIL-W-5664 ELASTIC: <5664D PDF>

This is a common elastic good for many gear uses such as holders in medic pouches and retention in drop leg straps.
Intended uses include:
Class 1- headbands for aviators' face mask goggles, parachute packs and harnesses, service cap covers, gloves, waist bands, and harness elastic on gas mask face pieces.
Class 2- Suspenders
Class 3- Parachute packs and rip-cord grip pocket for parachutes.
Type I is cotton fiber while Type II is nylon fiber.

CLASS WIDTH (inches) THICKNESS (inches) 50% ELONGATION (lbs)
- TYPE I TYPE I -
1 3/8" .016-.046" 1.15 - 3.25 lbs
1 1/2" .016-.046" 1.35 - 3.75 lbs
1 3/4" .016-.046" 1.8 - 5.0 lbs
1 7/8" .016-.046" 0.90 - 4.37 lbs
1 1" .016-.046" 3.0 - 5.50 lbs
1 1-1/2" .016-.046" 5.0 - 7.0 lbs
1 2" .031-.061" 6.0 - 11.0 lbs
1 2-1/2" .031-.061" 8.0 - 12.0 lbs
2 1-1/2" .094-.156" 7.20 - 17.50 lbs
3 1-1/2" .094-.156" 13.30 - 31.25 lbs
- TYPE II TYPE II -
1 1" .030-.060" 3.0 - 6.0 lbs
1 1-1/2" .030-.060" 4.0 - 7.5 lbs

MIL-C-5040 CORD (550 cord): <5040H PDF>

The well known cord 550 being TYPE III, good for a general pupose tie-down cord. Also works great for pull-ties, cinches with cord locks and more on gear. Intended use declares: for use as personal parachute suspension lines and is also used with various equipage items.

  TYPE I TYPE IA TYPE II TYPE IIA TYPE III TYPE IV
Breaking Strength (lbs) 95 lbs 100 lbs 400 lbs 225 lbs 550 lbs 750 lbs
Elongation % min 30 30 30 30 30 30
Length per pound min 950' 1050' 265' 495' 225' 165'

MIL-C-5651 CORD (shock cord): <5651D PDF>

Another well known cord good for tie-downs needing a good amount of elasticity. Can be used as a great adjuster for one's kit/gear. Intended uses for Types I and II declare simply: Shock mount installations. While Type III: Opening elastic on parachute packs, camera or instrument cradle mounts, airship valve control lines and where a shock absorbing cord of low initial tension is required.
Type I: Straight cord with double braided cover (shock absorbing)
Type II: Endless ring (Bungee) with double braided cover (shock absorbing)
Type III: Straight cord with single braided cover (exerciser cord)

TYPE Diameter (inch/cm) Breaking Strength (lbs/kg) Full Elongation (%min) 75% Elongation (lbs)
I 1/4"=.250" / .635cm 120 lbs / 54.5 kg 140 10-18 lbs
I 3/8"=.375" / .953cm 300 lbs / 136 kg 140 50-100 lbs
I 1/2"=.50" / 1.27cm 400 lbs / 193 kg 140 110-190 lbs
I 5/8"=.625" / 1.59cm 500 lbs / 227 kg 140 160-250 lbs
I 3/4"=.750" / 1.91cm 1000 lbs 454 kg 120 300-450 lbs
III 1/8"=.125" / .32cm 30 lbs / 13 kg 200 1.9-3.4 lbs ?
III 3/16"=.187" / .476cm ? 45 lbs / 20 kg 200 4-8 lbs
III 5/16"=.312" / .794cm 75 lbs / 34 kg 200 6-12 lbs

MIL-C-43701 CORD: <43701B PDF>
A lessor known cord with the intended use stated vaguely as: The elastic cord is intended for miscellanous equipage and armor applications.
Type I: General purpose cord
Type II: Lacing cord

TYPE Diameter (inches) Elastic Strands (min) Rubber Gage Elongation %
I 7/32" 35 24-38 90-110
II 3/16" 7 36 115-140

 

 

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