KM 77

The fit of the head cushion is critical to both comfort and safety. The head cushion should be adjusted so that it assists in the proper seal of th...

Communications Kit for all Kirby Morgan helmets and band masks. Can accommodate modular assemblies DSI 515-023 and DSI 515-024. Communication Kit I...

The neoprene neck dam is the standard neck dam configuration on the KM 37, KM 37SS, KM 47, KM 77, KM 97, and SL 17C. Part # Size Neck Size D...

Chin Cushion

This communications assembly unit will fit all Kirby Morgan helmet models (SL27,KM37, & later models), with the exception of the SL17B/C, MK21,...

Microphone Assembly

This communications assembly unit will fit all Kirby Morgan helmet models (SL27,KM37, & later models), with the exception of the SL17B/C, MK21,...

Valve, Oral Nasal

Valve, Body

Face Port

Comm. Mount Nut

DSI 525-211 Sealed Pull Pin Overhaul Kit Part # Description Qty DSI 510-008 O-ring 2 DSI 510-112 O-ring 6 DSI 520-008 Silicone Oil 6g ...

Screw, DSI 530-035

Screw, DSI 530-045

Nose Block Device

Spring Spacer

Washer, DSI 520-165

Knob, Nose Block

Spacer, DSI 550-061

Zinc Whisker Anode

Spring, Swing Catch

O-ring, Teflon®

For DSI 510-682 and DSI 510-521. DSI 525-745 Head Cushion Foam Spacer Kit Part # Description Qty. DSI 510-837 Head Cushion Foam Spacer Assem...

Part # Size Neck Size DSI 510-631 Small/Medium 12″ – 15″ DSI 510-633 Medium/Large 13.5″ – 17″ DSI 510-689 X-Large 18″ – 20″