Fisher Space Pen Refill Ballpoint Medium Nib Black YJB19032025 OEM: 5545008

OEM: 5545008

SKU: CD00121

OEM: 0350990

OEM: BL17-A

Suitable for Marbig kraft paper with a maximum width of 750 mm

Fisher Space Pen Refill Ballpoint Medium Nib Black YJB19032025 OEM: 5545008DescriptionSpecificationsShipping Paul C. Fisher developed the pressurized refill for NASA in 1965. It's still in use today on manned space flights because it performs when other pens fail. The combination of tungsten carbide ball point and thixotropic ink in a hermetically sealed cartridge pressurized at nearly 35 pounds per square inch allows it to write in freezing cold, boiling heat, under water and at any angle even upside down! Pressurized Space