Divers Supply Logo

Need help?

Need Help 1.800.999.3483 ⮟

ASK AN EXPERT
Close
Call for help1.800.999.3483
Chat for helpLive Chat
Email for helpEmail Us
[email protected]
Help timeHours
Monday - Thursday 10AM - 7PM
Friday- Saturday: 10AM - 6PM
Sunday: 12PM - 5PM - EST
Store locationStore Location

Your Account

Register
Brands  Current Specials
HOME › SCUBA GEAR › MASKS › OTS GUARDIAN R10 DEMAND LEVER WASHER
Quick Links
Main Image

OTS Guardian R10 Demand Lever Washer

Be the First To Review This SKU: OTS-245007-001
Free shipping on orders over $49
$10.95
Availability: Low Stock
* California Residents: Please view the Proposition 65 WARNING.
* Instructors: Click here
60/120 Day Returns
Best Price Guarantee
Chat with Experts
Related Products
DiveVolk New dual handle

DiveVolk New dual handle

From
$99.00
Finger Reel 65 FT HV Yellow

Finger Reel 65 FT HV Yellow

From
$18.95
Atmos Mission 26mm Band Black Band With Black Buckle

Atmos Mission 26mm Band Black Band With Black Buckle

From
$49.95 View Options
Ideation Designs DB2

Ideation Designs DB2

From
$71.95
Poseidon Weight Pocket Besea QR

Poseidon Weight Pocket Besea QR

3.0 

From
$99.95
Universal 1/4-20 Adapter for Goodman

Universal 1/4-20 Adapter for Goodman

1.0 

From
$14.99

Product Description

OTS Guardian R10 Demand Lever Replacement Washer

Component Location: R10 in the OTS Guardian Full Face Mask Regulator Assembly
 
The OTS Guardian Full Face Mask is designed for military, public safety, commercial, and recreational diving applications. 
 
Features include a removable second stage regulator, fog-resistant visor design, communications compatibility, and customizable equalizing assembly.

The OTS Guardian Demand Lever Washer (SKU: 245007-001 / OTS-245007-001) is an official OEM replacement hardware component for the Ocean Technology Systems (OTS) Guardian Full Face Mask (FFM) second-stage regulator assembly.

This specialized washer fits inside the regulator valve mechanism, serving as a low-friction bearing surface and precision spacer for the demand lever pivot pin assembly.

The OTS Guardian R10 Demand Lever Washer (245007-001) is a small but critical regulator component used within the OTS Guardian Full Face Mask (FFM) second-stage regulator assembly. Positioned at location R10 in the regulator schematic, this washer works in conjunction with the demand lever, locking nut, and valve assembly to ensure proper regulator lever alignment and smooth operation.

Although physically small, the demand lever washer plays an important role in maintaining correct spacing and mechanical movement of the regulator's demand lever system. Proper installation helps ensure reliable airflow performance and consistent breathing characteristics.

Product Type: OEM Replacement Second-Stage Regulator Internal Washer

Compatibility: Exclusively designed for the integrated OTS Guardian Full Face Mask 2nd Stage Regulator assembly.

Primary Function: Provides precise axial spacing, stability, and smooth rotation for the internal demand lever as it pivots to open the second-stage poppet valve during inhalation.

What does the Demand Lever Replacement Washer Do?

Inside the Guardian regulator, the demand lever transfers diaphragm movement into valve action that supplies breathing gas to the diver. The R10 washer:

  • Provides proper spacing within the lever assembly
  • Helps maintain accurate lever positioning
  • Reduces unwanted wear between moving components
  • Supports smooth opening and closing of the demand valve
  • Assists in maintaining factory regulator tuning

Because regulator performance depends on precise adjustments, replacement of worn or damaged washers should only be performed according to approved OTS service procedures.

FEATURES:

  • Genuine OTS replacement component
  • Designed specifically for Guardian regulator assemblies
  • Maintains proper demand lever geometry
  • Helps ensure smooth regulator actuation
  • Supports consistent valve operation
  • Precision-sized for correct assembly tolerances
  • Corrosion-resistant regulator component
  • Used during regulator rebuilds and maintenance

Product Information

Product CategoryAccessories
SKUOTS-245007-001
Stock1
ConditionNew
BrandOcean Technology Systems
More Info

TECH SPECS:

PART NUMBER = OTS 245007-001

COMPONENT TYPE - Demand Lever Axis Washer / Thrust Washer

MATERIAL - High-grade, low-friction marine polymer / PTFE composite

APPLICATION POINT - Internal 2nd stage regulator valve housing and demand lever pivot point

CORROSION & CHEMICAL RESISTANCE - Fully immune to saltwater, oxygen-rich breathing mixes, and silicone lubricants

Key Advantages & Operational Role

  • Smooth Inhalation Effort: Reduces mechanical friction between the metal demand lever arm and the regulator housing, ensuring consistent and effort-free breathing response.

  • Prevents Valve Binding: Maintains correct alignment of the lever so it depresses the poppet valve squarely without slop, drag, or uneven wear.

  • Long Service Life: Made from self-lubricating, non-corroding materials that withstand millions of breathing cycles without degrading.

Maintenance, Installation Tips & Tricks

Professional Regulator Servicing

  • The demand lever washer is a critical internal regulator component. Overhauling second-stage demand valve assemblies should be performed by a certified OTS technician or trained life-support equipment repair specialist.

Inspection During Annual Service

  • During annual mask overhauls, inspect the washer for signs of compression set, warping, or grooving caused by the demand lever pin. If any wear or flat spots are visible, replace it alongside the main poppet seat and diaphragms.

Cleanliness & Assembly

  • Ensure the regulator body pocket and pivot pin are completely clean and free of salt crust, sand, or old grease before placing the new washer.

  • Use only manufacturer-approved, oxygen-compatible lubricants (such as Christo-Lube MC111) sparingly if specified in the service manual.

Post-Dive Care

  • Thoroughly rinse the regulator assembly through the ambient ports with fresh water after every dive to prevent salt buildup around internal pivot points.

Product FAQs

(0 Questions)
Ask a Question

Product Reviews

Show all Reviews
OTS Guardian R10 Demand Lever Washer
$10.95
×
60/120 Day Return or Exchange

At Divers Supply you can take advantage of our 60/120 day return policy. You may order just about anything, Inspect the equipment when it arrives, and if you're not fully satisfied you can return it for a full refund (less the shipping charge, for items which we offer free shipping the original shipping savings associated with the returned item(s) will be deducted), as long as you haven't used it. We won't even ask why you've changed your mind.

No restocking fee and no questions asked (provided it has not been used). Items returned within 60 days of date of invoice, will get full refund less S/H charges, Items returned between 60-120 days of date of invoice, will get a full store credit less S/H charges.

To return an item, just follow link below.
Return Merchandise Form

×
Chat with an Expert

Questions about this item?

Ask us anything, or share you feedback. Our Staff is friendly and knowledgeable and always here to help! We are committed to earning your business with excellent service and prices. Divers Supply has been in business for over 40 years and is always working to give you the best SCUBA gear and equipment at the very lowest prices possible. So chat with one of our Experts and let us help get you into the best gear at the best price!


Click to Chat

×
Limited Stock

Sorry, we only have 0 in stock for this item.

We updated your quantity to the maximum available.

×
Best Price Guaranteed

So, you know what you want but you're on a budget? Or, you've found a lower price somewhere else? Don't worry, we have you covered.

Divers Supply is always working to give you the best SCUBA gear and equipment at the very lowest prices possible. With that, we guarantee to beat any authorized dealers price for the same product!

Another goal of Divers Supply is to fit all of the equipment you need inside your budget. We can not guarantee we can accomplish this, but we will always give it a shot!

Follow the steps below to submit your quote:

  1. Add Product(s) to your cart, once all of your products are in the cart, choose to view and edit your cart.
  2. In the cart click "Request a quote" and follow the proceeding instructions.
  3. In the comments sections, tell us what you would like to pay for the product(s) in your cart. (Please add comments in the cart, ex. I found a better price at)
  4. Submit the request and we will notify you as soon as possible; Monday - Friday.

We want to make sure we've done everything possible to get you the products you need within your budget. If you found a lower price on an identical item, tell us where.

Add a note with any special requests, shipping instructions, or important product details.