3M 7100003369 Head Harness Full Facepiece Respirator

Product Description

The 3M 7100003369 is a single replacement head harness designed for use with the 3M Ultimate FX Full Facepiece Reusable Respirator series. The harness secures the facepiece firmly against the wearer's face to maintain a proper seal during use in hazardous environments. This is an OEM-style replacement component intended to restore the fit and function of a worn or damaged harness assembly. Safety professionals, industrial hygienists, and respirator-qualified tradespeople performing scheduled maintenance on respiratory protection equipment will find this a direct drop-in service part.

This head harness is used in industrial, construction, and confined-space environments where full facepiece respiratory protection is required. It is a field-replaceable component suited for routine maintenance intervals or after harness degradation. Facilities and contractors maintaining a stock of replacement parts for their respirator fleet will recognize this part as the correct service component for the FF-400 series facepieces.

Key Features

• Single replacement head harness for the FF-400 series full facepiece respirators
• OEM replacement part maintains original fit and seal integrity
• Designed for field-level maintenance without full facepiece replacement
• Lightweight construction at 1.35 pounds
• Minimum order quantity of one unit

Compatibility

Compatible with the 3M Ultimate FX Full Facepiece Reusable Respirators FF-401, FF-402, and FF-403.

Installation Notes

Replacement of the head harness should be performed by a qualified respirator program administrator or trained end user following the manufacturer's service instructions. Ensure the facepiece is fully removed from service and cleaned before replacing the harness. After installation, perform a user seal check per OSHA 29 CFR 1910.134 requirements before returning the respirator to service. Do not use the respirator if a proper seal cannot be confirmed after harness installation.

Technical Specifications

• Weight: 1.35 pounds
• UPC: 50051135894762
• Minimum Order Quantity: 1

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100003369