Easy
30-60 minutes
This replacement hex socket head screw is an authentic OEM sourced replacement part that is designed for use with Bostitch and Porter Cable staplers and nailers. It is one of the screws that helps to secure the end cap, please make sure to check appropriate diagrams for correct location and use of this hardware. It is made from durable metal and it is sold individually.
Screw,soc Hd. Cap M5 X 20 N494651
OEM part for: Bostitch
Part Number: N494651
$3.99
In Stock
Ships within 1 business day 
Compatibility
This Screw,soc Hd. Cap M5 X 20 will fit the following 182 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Bostitch
Show More Compatible ModelsThis item works with the following types of products:
- Stapler Parts
- Nailer Parts
This part replaces obsolete part #: MSC5080-20 (Torque to 60-70 In.Lbs.)
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
I don't know. It's still broke
howard - September 7, 2020
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Socket set, Allen wrench socket
I purchased the overhaul kit which arrived next day. I disassembled the nailer and all the o-rings looked in very good condition and were well oiled. I replaced the o-rings anyway. The plastic exhaust valve appeared in good condition and was not part of overhaul kit so re-assembled and nailer still not holding air pressure. I did not go deeper into the forward end and instead took it to warranty service.
I measured all of the o-rings and sorted before beginning. One was a little too large for its numbered position so did not use ( Porter Cable error) The instructions in the overhaul kit showed one of the o-rings as the incorrect diameter where the owners manual was correct. Porter Cable goof.
Thanks eReplacement. Your video was a big help. My model is slightly different. Probably newer.
I measured all of the o-rings and sorted before beginning. One was a little too large for its numbered position so did not use ( Porter Cable error) The instructions in the overhaul kit showed one of the o-rings as the incorrect diameter where the owners manual was correct. Porter Cable goof.
Thanks eReplacement. Your video was a big help. My model is slightly different. Probably newer.
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
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