

🖋️ Write Beyond Limits — Bold Ink for Bold Moves
The Fisher Space Pen Bold Point Pressurized Cartridge Refill delivers smooth, bold black ink that writes flawlessly at any angle and in extreme temperatures from -30°F to 250°F. Trusted by astronauts and professionals worldwide, this brass-bodied refill fits most Fisher Space Pens, ensuring reliable performance in any environment—from zero gravity to underwater.












| ASIN | B000FTGCFI |
| Best Sellers Rank | #3,107 in Office Products ( See Top 100 in Office Products ) #9 in Ink Pen Refills |
| Brand | Fisher Space Pen |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (11,038) |
| Date First Available | February 2, 2004 |
| Ink Color | Black |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.352 ounces |
| Item model number | SPR4B |
| Manufacturer | Fisher Space Pen |
| Manufacturer Part Number | SPR4B |
| Material Type | brass |
| Number of Items | 1 |
| Point Type | Bold |
| Product Dimensions | 3.5 x 0.2 x 0.2 inches |
| Size | 1 Count (Pack of 1) |
P**N
Fischer Space Pen ink refill
This is a very nice product at a great price that works well and gets delivered fast.
D**N
Works for me, so far
Writes well, have only had it a short while, hoping it will last for a good amount of time. Bought it for the size, fits in a promo pen that I got for free that I like.
A**S
You get the value you pay for.
Still the quality I found in the late 1960s. Made in the USA in NV. As claimed, writes in any position and on poor-quality paper. Ink is bold and lasts for years with occasional use. The small size when closed, all-metal, smooth surface pen rides comfortably in a front pocket. You get the value you pay for.
T**R
Recommend
I love my Fisher refills ain't dries fast the refill quality is good the size is always dependable the length is just right to make it fit in a Parker Pen
T**T
A good refill
Writes as expected and it’s a good price. The line is nice and thick and the writing is nice and smooth, and it fits in the pen correctly
D**H
Great pen cartridge
It is exactly what I ordered for my pen. So easy to use.
G**T
Works perfectly!
Works perfectly! I was reluctant to purchase refills from other manufacturers. This is original Fisher brand.
W**E
When it absolutely, positively MUST work
When it absolutely, positively MUST work They say a picture is worth 1000 words, so how much is this video saying? So I pretty much think the video says it all but there may be a couple of questions. The paper is simple laser printer paper and a pen is a Zebra F-701. There’s been comes in some of the crappy us staying on earth but it has the fisher space pen refill inside it and it fits mostly it is a little bit tight so if you widen or snip the silicone collar inside the metal tip of the pen , it’s smooths out quite a bit. The liquid is water despite many of my friends determined to believe it is vodka. I suppose it would work as well but the ink might run a little more. Anyway who’s going to waste that much vodka? I’m actually surprised when I run into somebody who’s never used his space pen at some point in their life. Is the ink the prettiest?No. Does it right the smoothest? No. But does it write where nothing else will write and on what nothing else will write? Absolutely. And actually it writes pretty darn smoothly all things considered. I prefer the medium points for smoothness and line is still quite fine. It uses a ceramic bowl in the point and I think that’s responsible for a smoother flow and smoother writing experience than a steel bearing point is. Some people complain that there’s a little difference between the fine in the medium points and maybe you said but I think they’re really missing the point of this pen. I take them camping and hiking. They write in the rain quite well ( I pair them with the “Rite-In-The-Rain notebook ) You can keep them in your car in the heat isn’t going to destroy them. They’re not going to explode in your pocket and they write a lot better on airplanes than my other pens. In my experience the cartridges last a considerably longer time that other ball points as well. The ink never dries up or evaporates. Being left-handed one tends to smudge over the things they write and this is permanent oil base think that dries very quickly so I usually don’t run into that problem like I can with other ball points and fountain pens. I’ve not been impressed with the actual pen construction that Fisher makes recently but the refills are still solid. They’re not cheap comparatively but they’re still affordable. It is far as I’m concerned it’s twice with a regular refill is but I’d last three times as long so it actually is a better value. And this thing does what no other pen made can do . If this is an a five star product then I don’t know what is.
O**T
Subdued green . The cartridge has the good characteristics of the other colours I have tried.
O**T
For my small journal pages it is nice to have a thinner line. All these cartridges give a very smooth writing experience and no problems with ink flow.
E**A
Produto muito bom, funciona em posições variadas; pra cima, na vertical, em papel sujo de poeira, óleo.
K**E
Anni fa mi hanno regalato una bellissima penna tattica del marchio Colt che uso anche come penna in caso di necessità, da diverse ricerche sul web ho trovato che questi refill sono i migliori e adatti alla sostituzione dello slot dell'inchiostro e così è stato, è perfetta, per sfizio ho voluto provare il color marrone e scrive benissimo!
A**R
Fits my Parker ballpoint perfectly with the included adaptor. Very good product and writes smoothly.
Trustpilot
5 days ago
4 days ago