{"label": "spiral_material_options", "value": ["Default spiral: Spira-Shield (tin/lead plated beryllium copper).", "Alte

{"label": "special_elastomer_options", "value": ["Standard elastomer: solid silicone rubber.", "Special elastomer suffix

{"label": "product_family", "value": "\"D\" Multi-Seal"}

{"label": "mounting", "value": "Groove-mounted; compatible with dovetail or conventional o-ring groove."}

{"label": "cord_insert_options", "value": ["NC = No Cord (recommended; example: DMS-1263 NC).", "Cord insert available (

{"label": "size_code", "value": "0421"}

{"label": "shielding_quality", "value": "Approx. 86 dB to 165 dB (application-dependent)."}

{"label": "spiral_default", "value": "Spira-Shield (tin/lead plated beryllium copper ribbon)"}

{"label": "elastomer_durometer", "value": "40A (solid silicone)"}

{"label": "ordering", "value": "Sold by the foot in 10-foot lengths; custom o-rings available; not all configurations ar

{"label": "elastomer", "value": "Bulbous solid silicone rubber environmental seal"}

{"label": "optimal_compression", "value": "25% of spiral diameter."}

{"label": "compression_force", "value": "~33 lb per linear inch (standard force)"}

{"label": "cord_insert", "value": "No cord by default"}

{"label": "application", "value": "Combination EMI shielding + environmental sealing for limited-space groove-mount desi

{"label": "force_class", "value": "standard"}

{"label": "part_number", "value": "DSS-0421"}

{"label": "gasket_dimensions", "value": {"width_E": ".141 in", "wall_thickness_t": "N/A (solid elastomer per datasheet n

{"label": "recommended_mounting_dimensions", "value": {"depth_L": ".046 in (+.002/-0.000)", "width_G": ".187 in (+.007/-