This o-ring is a high quality item designed for Bostitch nailers and staplers. It is an authentic part that is supplied directly from original equipment manufacturer. This o-ring is generally used to provide a seal for the trigger valve. Over time these rubber parts tend to shrink, become brittle and crack allowing for air leaks. Keep an eye on the tools performance and replace o-rings as needed to maintain optimum performance. Please note, one rubber o-ring is included per order. Replacing this item you will need hex key also known as an allen wrench.
O-ring,.703x.103 851554
OEM part for: Bostitch, DeWALT
Part Number: 851554
$3.99
In Stock
Ships within 1 business day 
Frequently Purchased Together ?
Compatibility
This part will fit the following 81 machines
Bostitch
538S214 Pneumatic Stapler View Diagrams & Manuals
538S4 Pneumatic Stapler View Diagrams & Manuals
538S5 Pneumatic Stapler View Diagrams & Manuals
438S2 Pneumatic Stapler View Diagrams & Manuals
438S2R Pneumatic Stapler View Diagrams & Manuals
438S4 Pneumatic Stapler View Diagrams & Manuals
438S5 Pneumatic Stapler View Diagrams & Manuals
450S2 Pneumatic Stapler View Diagrams & Manuals
WM45B Pneumatic Coil Nailer View Diagrams & Manuals
T55S5 Pneumatic Stapler View Diagrams & Manuals
T50S2 Pneumatic Stapler View Diagrams & Manuals
T40SX Pneumatic Stapler View Diagrams & Manuals
T40SL Pneumatic Stapler View Diagrams & Manuals
T40S5M Pneumatic Stapler View Diagrams & Manuals
T40S5 Pneumatic Stapler View Diagrams & Manuals
T40S4M Pneumatic Stapler View Diagrams & Manuals
T40S4 Pneumatic Stapler View Diagrams & Manuals
T40S2S Pneumatic Stapler View Diagrams & Manuals
T40S2M Pneumatic Stapler View Diagrams & Manuals
T40S2 Pneumatic Stapler View Diagrams & Manuals
T40BSX Pneumatic Stapler View Diagrams & Manuals
T40BEA Pneumatic Stapler View Diagrams & Manuals
S32SXLP Pneumatic Stapler View Diagrams & Manuals
S32SXLM Pneumatic Stapler View Diagrams & Manuals
S32SX-LATMAG Pneumatic Stapler View Diagrams & Manuals
S32SX-BHF-2 Pneumatic Stapler View Diagrams & Manuals
S32SX-BHF Pneumatic Stapler View Diagrams & Manuals
S32SX-BF-KIT Pneumatic Stapler View Diagrams & Manuals
N80CB-1ML Coil-Fed Pneumatic Nailer View Diagrams & Manuals
SDCN14B Coil-Fed Pneumatic Nailer View Diagrams & Manuals
N57C Coil-Fed Pneumatic Nailer View Diagrams & Manuals
N50FN Angle Stick Pneumatic Finish Nailer View Diagrams & Manuals
S32SLLM Pneumatic Stapler View Diagrams & Manuals
S3297-LHF-2 Pneumatic Stapler View Diagrams & Manuals
S3297-LHF Pneumatic Stapler View Diagrams & Manuals
PC5000 Pneumatic Stapler View Diagrams & Manuals
N70CBM Coil-Fed Pneumatic Nailer View Diagrams & Manuals
N64C Coil-Fed Pneumatic Nailer View Diagrams & Manuals
N63CP Coil-Fed Pneumatic Nailer View Diagrams & Manuals
N60FN Angle Stick Pneumatic Finish Nailer View Diagrams & Manuals
N59FN Pneumatic Finish Nailer View Diagrams & Manuals
438S2R-1 (Type 0) Pneumatic Stapler View Diagrams & Manuals
438S2-1 (Type 0) 16 Gauge Wide Crown Stapler View Diagrams & Manuals
450S2-1 (Type 0) 16 GA Wide Crown Lathing Stapler View Diagrams & Manuals
S32SX-BF (Type 0) Pneumatic Stapler View Diagrams & Manuals
S32SX-LATMAG (Type 0) Pneumatic Stapler View Diagrams & Manuals
T55S4 (Type 0) Pneumatic Stapler View Diagrams & Manuals
450S2-2 (Type 0) Tacker,S2,2in Max. View Diagrams & Manuals
538S214 (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
PC5000 (Type 0) Nailer Power Tool View Diagrams & Manuals
S3297-LHF-2 (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
S3297-LHF (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
S32SLLM (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
S32SX-BHF-2 (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
S32SX-BHF (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
S32SXLM (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
S32SXLP (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T40BEA (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T40BSX (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T40S2 (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T40S2M (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T40S2S (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T40S4 (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T40S4M (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T40S5 (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T40S5M (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T40SL (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T40SX (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T50S2 (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
T55S5 (Type 0) Pneumatic Stapler Power Tool View Diagrams & Manuals
N50FN (Type 0) Finish Nailer Power Tool View Diagrams & Manuals
N57C (Type 0) Coil-Fed Nailer Power Tool View Diagrams & Manuals
N59FN (Type 0) Finish Nailer Power Tool View Diagrams & Manuals
N60FN (Type 0) Finish Nailer Power Tool View Diagrams & Manuals
N63CP (Type 0) Coil-Fed Nailer Power Tool View Diagrams & Manuals
N64C (Type 0) Coil-Fed Nailer Power Tool View Diagrams & Manuals
N70CBM (Type 0) Coil-Fed Nailer Power Tool View Diagrams & Manuals
N80CB-1ML (Type 0) Coil-Fed Nailer Power Tool View Diagrams & Manuals
SDCN14B (Type 0) Coil-Fed Nailer Power Tool View Diagrams & Manuals
WM45B (Type 0) Coil Nailer Power Tool View Diagrams & Manuals
DeWALT
DW450S2 (Type 1) 16ga 1incrw 2in Stap View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Stapler Parts
- Nailer Parts
Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
Ask our Team
We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Does this fit my product?Questions & Answers for O-ring,.703x.103
No questions have been asked yet
OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
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.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
