T50S4 Bostitch Nailer - Overview

Diagrams for T50S4

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WASHER-RUBBER-7 – Part Number: 854004
$7.44
In Stock
WASHER-RUBBER-7
Part #854004
This rubber replacement seal is designed for use with select pneumatic and coil-fed nailers, providing a tight and reliable seal at the nose of the tool. Its primary function is to prevent air leakage during operation, helping to maintain consistent pressure and performance. Over time, seals can wear down or become damaged, which may lead to reduced efficiency or tool malfunction. This part is sold individually and is ideal for routine maintenance or repair. Replacing a worn nose seal can help extend the life of your tool and ensure smooth, dependable operation.
Spring,Pusher – Part Number: T50036
No Longer Available
Spring,Pusher
Part #T50036
Magazine Nut – Part Number: T50052
No Longer Available
Magazine Nut
Part #T50052
Bracket,Magazine – Part Number: T50103A
No Longer Available
Bracket,Magazine
Part #T50103A
Kit,Trigger Valve-Speed – Part Number: STV2
No Longer Available
Grip,Handle – Part Number: 107490
No Longer Available
Grip,Handle
Part #107490
Label, Trip Adj. – Part Number: 851934
No Longer Available
Label, Trip Adj.
Part #851934
Check Seal – Part Number: N50034
No Longer Available
Check Seal
Part #N50034
This is a genuine manufacturer-sourced part which is made for Bostitch nailers and staplers. It helps to distribute the pressure evenly and provide a tight seal between connected components. Over time check seal may wear out, become brittle and begin to crack eventually requiring a replacement. Make sure to check the appropriate diagrams for your model to ensure the exact location and the correct application. Note, one durable rubber check seal is included.
O-Ring Kit (T40, T50, N50FN, N60FN N59FN) – Part Number: ORK1
No Longer Available
Bumper, Top – Part Number: T50002
No Longer Available
Bumper, Top
Part #T50002
This replacement bumper is a genuine OEM sourced item that is specially made for Bostitch nailers and staplers. The purpose of this part is to keep the piston from hitting the bottom of the cylinder and damaging it. Because this part get so much abuse over time it will begin to fall apart eventually requiring replacement. This item is made from durable plastic material and it is sold individually. You will need a hex key set to complete this repair.
PIN-SPIRAL M3X30 – Part Number: 100298
$7.44
In Stock
PIN-SPIRAL M3X30
Part #100298
It is a genuine manufacturer-supplied component which is made for Bostitch nailers and staplers. This is a special spiral pin that is utilized to secure the trigger. It is an identical replacement for a faulty or a missing hardware that was installed on a new unit. To ensure the proper repair procedure, refer to the appropriate diagram for your model. The spiral pin is made of durable metal and is sold as an individual item. You may need pliers to replace it.
SPRING-COMPRESSION – Part Number: 100387
$7.44
Special Order
SPRING-COMPRESSION
Part #100387
This compression spring is an OEM direct from Bostitch. The metal spring is compatible with many stapler and nailer tools. This item is fitted within the trigger valve kit of the device. The spring is the mechanism for the trigger to move back in place. Although this part is sold individually, it can also be found in the SEQ6 Kit. A small hammer and a hex key are helpful in the repair.
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would not fire nails
10 of 15 people found this instruction helpful.
  • Richard from Bogalusa, LA
  • A Bit Difficult
  • 30 - 60 mins
  • Pliers, Screw drivers
remove 2 Philips head screws, drive out drift pins with drill bit. Remove TVA6 replace with new TVA6 making sure TVA6 is completely seated and slots are aligned with drift pin holes! Drive in drift pins. Replace trigger and screws.
This did not solve the problem as suggested by Parts select.
Replaced Head Valve Seal...Problem re solved
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