Frontline LIS31S Combat 3 ft Single Leg Snaphook Lanyard with Internal Shock Absorber, 3-Pack

Description

Bulk 3-Pack3 units, one checkoutThis listing ships as a 3-pack: 3 identical LIS31S Combat 3 ft Single Leg Snaphook Lanyard with Internal Shock Absorber units in a single order. Stock a full crew or jobsite at once. Need a different quantity? Call 863-703-4522.Frontline Combat Lanyards

LIS31S Combat 3 ft Single Leg Snaphook Lanyard, 3-Pack

The Frontline LIS31S is a 3 ft single leg shock absorbing lanyard built around an internal energy absorber: 1.57 in polyester tubular webbing with the absorber integrated inside the web, so there is no bulky external pack to snag. Both ends terminate in sewn textile loops carrying steel stamped snap hooks, and the short 3 ft body is built for low-clearance tie-off.

Hardware is alloy steel, zinc plated and shot blasted, with a 5,000 lb minimum breaking strength; the polyester webbing carries 6,000 lbs, sewn with high-tenacity polyester thread. Rated for one worker up to 310 lbs, and built to ANSI Z359.13-2013 and ANSI A10.32-2004, aligning with OSHA 1926 and 1910. INSPEC third-party tested, including deployment indicator, activation force, and energy absorber clauses.

310 lbsMax Capacity3 ftWorking Length6,000 lbsWebbing Breaking Strength3,600 lbsSnaphook Gate StrengthInternalEnergy AbsorberLowClearance RequirementZ359.13ANSI StandardSteelZinc Plated Hardware

Who Needs This Product

This product is a fall arrest connecting device – the link between a full body harness and an anchorage connector. Construction crews, steel erectors, and maintenance workers use shock absorbing lanyards where an SRL is not practical and the fall clearance below the work surface allows the absorber to deploy. You still need a harness and a rated anchor to complete the system.

Features

Internal energy absorber

The absorber is integrated inside the tubular webbing – no external shock pack to snag or abrade.

3 ft for tight clearance

Half the length of a standard lanyard – for scissor lifts, low anchors, and short-clearance work.

Textile loop terminations

Sewn loops at both ends keep the connection compact and reduce hardware weight.

1.57 in tubular webbing

Polyester webbing rated to 6,000 lbs, sewn with high-tenacity polyester thread.

Anchorage-grade hardware

Alloy steel hooks, zinc plated and shot blasted, rated to 5,000 lbs.

Compact and light

At about 2.5 lbs it hangs off the harness all shift without fighting you.

Technical Specifications

SKU	LIS31S
Type	Single leg internal shock absorbing lanyard, 3 ft
Webbing	Polyester
Webbing breaking strength	6,000 lbs
Hardware	Alloy steel, zinc plated
Snaphook gate strength	3,600 lbs
Length	3 ft
Max capacity	310 lbs (one worker)
Standards	ANSI Z359.13; OSHA CFR 1926; OSHA CFR 1910

⚠

Clearance is everything with a shock absorbing lanyard. The energy absorber needs room to deploy below the work surface – account for free fall distance, absorber elongation, harness stretch, and worker height before trusting any tie-off point. Run the Fall Protection Calculator below, and keep the free fall within the limits in the Frontline manual.

Compliance Standards

ANSI Z359.13-2013

American National Standard for personal energy absorbers and energy absorbing lanyards. Third-party test report linked in Submittals.

ANSI A10.32-2004

Fall protection requirements for construction and demolition operations.

OSHA 29 CFR 1926.502

Federal construction fall protection criteria, including connecting device requirements.

OSHA 29 CFR 1910.140

General industry personal fall protection system requirements.

Typical Applications

General constructionEveryday fall arrest connection at framing, decking, and edge work.Steel erectionTie off to beam anchors and cross arm straps.ScaffoldingConnection on and around supported scaffolds.RoofingPair with roof anchors where clearance allows a lanyard.MaintenanceA simple, rugged connector for recurring service work.Plant and facility workGeneral industry tie-off under OSHA 1910.

How to Use the LIS31S Lanyard

Follow the manufacturer’s manual. The sequence below is an overview only.

1. Inspect. Check webbing, absorber, stitching, and both hooks before each use.
2. Verify clearance. Confirm total fall clearance including absorber deployment – run the calculator below.
3. Connect to the harness. Attach the harness end to the dorsal D-ring of a full body harness.
4. Connect to the anchor. Attach the anchor end to a rated anchorage connector at or above the D-ring where possible.
5. Check the gates. Confirm both hooks are fully closed and locked.
6. Limit free fall. Work so free fall stays within the limits in the Frontline manual.

Inspection and Retirement

Inspect before each use, with a documented competent-person inspection at least every 6 months. Pull the equipment from service for any of the conditions below.

• Webbing: cuts, fraying, abrasion, burns, chemical damage, or stiffness.
• Energy absorber: deployment, torn cover, or a tripped impact indicator.
• Stitching: broken, pulled, or abraded threads at terminations.
• Hooks: deformation, cracks, corrosion, or gates that fail to close and lock.
• Markings: labels must be present and legible.

Retire the lanyard immediately after any fall arrest event – the energy absorber is single-use – or if any inspection point fails. Destroy retired equipment so it cannot return to service.

Fall Protection
Distributors, LLC Free Tool · No Signup · OSHA 1926.502 Free Interactive Tool Fall Protection Calculator Pick your system. Run the math. Generate a plan. 1Pick Your SystemDetermine fall restraint vs. fall arrest based on your work surface, edge access, and clearance. 2Run the MathCalculate exact fall clearance required below the work surface for your SRL or lanyard setup. 3Generate a PlanGet a printable OSHA-compliant Fall Protection Plan structured around 29 CFR 1926.502(k). Run the Numbers and Stay Safe Launch the Calculator ›

Frequently Asked Questions

What does “internal shock absorber” mean on the LIS31S?The energy absorber is built inside the tubular webbing itself rather than hanging in an external pack. In a fall, the webbing tears out progressively to absorb energy and limit the force on your body.What is the rated capacity?One worker with a maximum weight of 310 lbs including clothing and tools.How much fall clearance do I need?More than most people think: free fall distance plus absorber elongation plus harness stretch plus your height below the D-ring, plus a safety margin. Use the Fall Protection Calculator below to run your exact numbers.Why choose a 3 ft lanyard?Shorter lanyard, shorter free fall, less clearance needed. The LIS31S suits aerial lifts, low anchor points, and platforms where a 6 ft lanyard would not have room to deploy safely.Which standards does it meet?Per the Frontline spec sheet, the lanyard is built to ANSI Z359.13-2013 and ANSI A10.32-2004 and aligns with OSHA 1926 and 1910. A third-party test report is linked in Submittals.Can I reuse it after a fall?No. The energy absorber is single-use. After any fall arrest event, retire and destroy the lanyard immediately.What is the difference between fall arrest and fall restraint?Fall arrest catches a worker after a fall happens; fall restraint prevents the worker from reaching the fall hazard in the first place. A shock absorbing lanyard is a fall arrest connecting device – it must be rigged with enough clearance for the absorber to deploy. For a deeper walkthrough with system examples, read our guide: Fall Arrest vs. Fall Restraint. Use the Fall Protection Calculator below to size the right system for your job.

Frontline LIS31S Submittals and Documentation

Frontline LIS31S Spec Sheet (PDF)Webbing, hardware, strength ratings, and standards. Frontline LIS31S User Manual (PDF)Use, limitations, free fall limits, inspection, and retirement. Frontline LIS31S Test Report (PDF)Third-party test results to ANSI Z359.13-2013. LIS31S-3PK Frontline Catalog (PDF)The full Frontline Fall Protection product catalog with the complete anchor, lanyard, and SRL range.

Compatible and Related Products

• Frontline 100CTB Combat Construction Harness. The construction harness this lanyard clips into.
• Frontline MPS Cross Arm Strap. A wrap-around anchorage connector for beams and trusses.
• Frontline ROB01 Bull Ring Roof Anchor. A reusable roof anchor to complete the system.

Building Out Fall Arrest Systems for Your Crew?

Need help matching lanyards, harnesses, and anchors? Confirm your application, anchorage, and clearance with us and we will walk through the kit list so the right equipment ships together.

Call 863-703-4522 to talk to a fall protection specialist.