Miller 850 Full Body Harness, Made in USA
The Miller 850 is a classic American-made full body harness: friction buckle shoulder straps for fine vertical adjustment, mating buckles at the chest and legs for secure, glove-friendly connections, and hi-vis yellow polyester webbing that keeps the worker visible on an active site.
Built in the United States and certified to ANSI Z359.11, the 850 covers construction and general industry fall arrest with a 420 lb maximum working load and five points of adjustment. This is the Universal (L/XL) size, which fits the majority of workers.
Miller Harness Sizing Chart
Height (ft) by Weight (lb)
| 110 | 130 | 150 | 170 | 190 | 210 | 230 | 250 | 270 | 290 | 310 | 330 | 350 | 370 | 390 | 400 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6′6″ | ||||||||||||||||
| 6′4″ | XXL/XXXL | |||||||||||||||
| 6′2″ | ||||||||||||||||
| 6′ | ||||||||||||||||
| 5′10″ | UNIVERSALMost Popular Size (L/XL) | |||||||||||||||
| 5′8″ | ||||||||||||||||
| 5′6″ | ||||||||||||||||
| 5′4″ | ||||||||||||||||
| 5′2″ | S/M | |||||||||||||||
| 5′ |
S/M fits workers up to 5 ft 10 in and 170 lb, or up to 190 lb at 5 ft 6 in and under. Universal (L/XL) covers the broad middle and is the most popular size. XXL/XXXL fits workers over 6 ft who weigh over 270 lb, and any worker from 350 to 400 lb. Lighter boundary bands are overlap zones where either size fits: size down for a trim fit or up for room over layers. Some Miller spec sheets list these as Size 1 (S/M), Size 2 Universal (L/XL), and Size 3 (2XL and 3XL). Based on the manufacturer's published Miller sizing chart; verify fit per the user manual before first use.
Who Needs This Product
The 850 is for buyers who specify American-made equipment: government and municipal work, utilities, and contractors with Buy American requirements. The friction shoulder buckles let the worker dial in torso length precisely, and the mating chest and leg buckles keep every connection simple to verify. Crews without a domestic sourcing requirement can compare the Titan II line for a lower cost per worker.
Features
Made in the USA
Built in the United States and listed as TAA compliant, satisfying federal and Buy American sourcing requirements.
Friction Shoulder Buckles
Friction buckles on the shoulder straps give fine, continuous torso adjustment that holds its setting under load.
Mating Chest and Leg Buckles
Interlocking mating buckles seat positively, verify at a glance, and have nothing to foul with dirt or ice.
Hi-Vis Yellow Webbing
High-visibility polyester webbing keeps the worker conspicuous around moving equipment.
Back D-Ring
A steel dorsal D-ring provides the fall arrest connection point, positioned between the shoulder blades.
Five Points of Adjustment
Shoulder, chest, and leg adjustment delivers a custom fit for all-day wear.
Technical Specifications
| SKU | 850/UYK |
|---|---|
| Product | Miller 850 Full Body Harness |
| Size | Universal (L/XL) |
| Color | Hi-Vis Yellow |
| D-ring | Dorsal (back) |
| Shoulder buckles | Friction |
| Chest buckle | Mating |
| Leg buckles | Mating |
| Adjustment points | 5 (chest, shoulders, legs) |
| Webbing | Non-stretch polyester |
| Max working load | 420 lb / 190 kg including all clothing, tools, and equipment |
| Packaging | Boxed |
| Country of origin | United States |
| Standards | ANSI Z359.11; OSHA 1926.502; OSHA 1910.140; TAA compliant |
| Warranty | Miller Limited Lifetime Warranty against defects in workmanship and materials |
Fit before the first step up. Set the friction shoulder buckles so the dorsal D-ring sits between the shoulder blades, the chest strap crosses mid-chest, and the leg straps allow a flat hand but not a fist. A harness that has arrested a fall is done: remove it from service immediately.
Compliance Standards
ANSI Z359.11
Certified to the ANSI/ASSE Z359.11 standard for full body harnesses, covering design, testing, and marking requirements.
OSHA 1926.502 and 1910.140
Meets OSHA requirements for personal fall arrest system body wear in both construction and general industry.
TAA Compliant
Listed as TAA compliant by the manufacturer, allowing purchase on federal projects that require Trade Agreements Act sourcing.
Typical Applications
Donning Overview
- Hold the harness by the back D-ring and shake it out so the straps hang free without twists.
- Slip the shoulder straps on like a vest, keeping the webbing flat against the body.
- Connect the chest buckle and position the chest strap across the middle of the chest.
- Fasten each leg buckle so the strap allows a flat hand between the strap and the leg, but not a fist.
- Work through all five adjustment points until the dorsal D-ring rests between the shoulder blades, then stow the strap ends.
Full donning and adjustment instructions are in the Miller harness manual linked in the documentation section below.
Inspection and Retirement
Inspect this harness before each use, and have a competent person other than the user formally inspect it at least annually per ANSI Z359.2. Check each point below and record the results on the inspection form linked in the documentation section.
- Webbing: cuts, frays, burns, chemical damage, UV fading, or broken stitching anywhere on the harness.
- Hardware: D-rings and buckles for cracks, corrosion, distortion, or sharp edges.
- Adjusters and keepers: slippage, missing keepers, or strap ends that will not stay stowed.
- Labels: present and legible, including the size, standards, and serial information.
Retirement triggers: any fall arrest event, any webbing or hardware defect found during inspection, or any condition where the inspector cannot positively verify the harness is fit for service.
Fall ProtectionDistributors, 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).
Frequently Asked Questions
Miller 850 Harness Submittals and Documentation
850 Specification Sheet (PDF)Technical data, sizing, materials, and SKU-level UPC information. 850 User Instruction Manual (PDF)Miller I119 manual: donning, adjustment, use limitations, and inspection criteria. Miller Fall Protection Catalog (PDF)The full Miller line: body wear, connecting devices, anchors, and rescue. 850 Harness Inspection Form (PDF)Printable pass/fail checklist for documented harness inspections.Compatible and Related Products
- Miller T4500 Titan II Non-Stretch Harness. The hi-viz general purpose harness in the same Titan II line.
- Guardian CR5 Class 1 Single Leg Web SRL, 6 ft. A compact web SRL to pair with the dorsal D-ring.
- Guardian 10733 Suspension Trauma Strap, 4-Pack. Add a trauma relief strap to every harness on the crew.
Specifying American-Made Harnesses?
Sourcing requirements, sizing, and duty level decide the right harness. Confirm your crew with us and we will make sure the right equipment ships together, based on the delivery location.
Call 863-703-4522 to talk to a fall protection specialist.
Miller Limited Lifetime Warranty
Miller Fall Protection products are covered by the Miller Limited Lifetime Warranty. In the manufacturer's words: "We sincerely believe that our fall protection equipment is the best in the world. Our products endure rigorous tests to ensure that the fall protection equipment you trust is manufactured to the highest standards. Miller fall protection products are tested to withstand normal wear and tear, but are not indestructible and can be damaged by misuse."
In the unlikely event that you should discover defects in either workmanship or materials, under the Limited Lifetime Warranty, Miller will repair or replace the product at the manufacturer's expense. If a replacement is necessary and your product is no longer available, a comparable product will be substituted. The Limited Lifetime Warranty does not apply to normal wear and tear or abusive treatment of the product.
Miller is a brand of Protective Industrial Products, Inc. (PIP). Should a product issue surface, contact Fall Protection Distributors, LLC and we will coordinate the warranty claim with the manufacturer.
