N400C-1 (Type 0) Bostitch Nailer - Overview

Diagrams for N400C-1

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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.
SCREW-SOC. HD. CAP M – Part Number: MSC6100-40
$7.44
Special Order
SCREW-SOC. HD. CAP M
Part #MSC6100-40
LUBE (1LB.CAN) – Part Number: 100679
$99.16
Special Order
LUBE (1LB.CAN)
Part #100679
PIN SPRING – Part Number: 174345
$7.44
Special Order
PIN SPRING
Part #174345
This is an authentic replacement part for Bostitch staplers. The spring pin is designed to attach the trigger to the adjustment housing and provide tension to keep the trigger extended. The part is made of high-quality materials. This item is sold individually.
O-RING-.987X.103 – Part Number: 851384
$30.64
In Stock
O-RING-.987X.103
Part #851384
This is an authentic OEM sourced component which is specially made for use with Bostitch nailers. The part provides an identical replacement for a missing or a faulty O-ring that was installed on a new unit. It is utilized to provide a tight seal between connected components. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of this hardware. Keep in mind this high-quality O-ring is made of durable rubber material and is sold individually. A screwdriver will be needed to perform this repair.
LOCTITE – Part Number: 851385
$61.75
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LOCTITE
Part #851385
COMPRESSION SPRING – Part Number: 854011
$7.44
Special Order
COMPRESSION SPRING
Part #854011
The metal compression spring is made of metal and goes between the check pawl and the door. This part is available as an individual replacement and is an OEM replacement part from the manufacturer Bostitch for use in nailers. Springs can lose their tension over time and will need to be replaced. A set of pliers and a socket set may be needed when replacing this spring.
SCREW-SHCS-M6X1.00X3 – Part Number: MSC6100-35
$7.44
Special Order
SCREW-SHCS-M6X1.00X3
Part #MSC6100-35
This authentic item is supplied directly from the original equipment manufacturer for use with Bostitch pneumatic nailers and staplers. It is a special screw that is utilized to secure the utility hook assembly. Please refer to the diagrams of your specific model for the exact location and the correct installation of this hardware. Note, this screw is made of durable metal and is sold individually.
COVER-FEED PISTON – Part Number: N80124
$7.44
Special Order
COVER-FEED PISTON
Part #N80124
O-RING-2.343X.118 – Part Number: MRG049431
$7.44
In Stock
O-RING-2.343X.118
Part #MRG049431
It is a genuine item that is supplied by the original equipment manufacturer for use with Bostitch and Porter Cable pneumatic nailers. O-rings are generally utilized to provide a tight seal between connected components. Unfortunately, over time it will wear out and may begin to crack eventually requiring a replacement to maintain the proper seal. Make sure to check the owners manual and the appropriate diagrams of your model for the exact location and application of this part. Keep in mind this high-quality o-ring is made of durable rubber and is sold individually.
KIT-TRIGGER VALVE – Part Number: TVA6
$71.77
In Stock
KIT-TRIGGER VALVE
Part #TVA6
Restore your tool’s performance with this complete trigger valve repair kit for brad nailers and staplers. If your tool is leaking air or frequently misfiring, replacing the trigger valve may solve the issue. This kit includes everything needed for the repair: a valve assembly with two O-rings, lubricant, a spring pin punch, and step-by-step instructions. The included O-rings—also available separately—are common wear items that can cause performance issues when damaged. Installation is simple and only requires a hammer.
SCREW-SHCS-M5X0.8X12 – Part Number: MSC5080-12
No Longer Available
SCREW-SHCS-M5X0.8X12
Part #MSC5080-12
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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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