Genuine Hitachi replacement part, this item is sold individually. This O-Ring is place in the groove in the piston in all the tool models listed below. Its purpose is to create a seal in the cylinder, so when the trigger of the tool is activated, will push the driver and piston assembly down and sink the fastener that is being used. Some of the tools listed offer an O-ring kit that would have all the essential O-rings in it.
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Hi Dave, Thank you for your question. If the nail gun will not fire, we would recommend checking the piston ring and the urethane ball. We hope this helps!
Hi Gregg, Thank you for your question. If your nail gun will not sink the nails deep enough, there are some parts that you will need to check to see which one is causing the issue. We recommend checking the the driver, the o-ring, the seal, the bumper, the springs, the oil, the trigger valve, and the piston ring. We have included a link from our website that you may reference on how to check these parts, https://www.ereplacementparts.com/repair-center/power-tool/nailer/doesn't-sink-nails-deep-enough/. Once you have determined the part you need, please call customer service. We look forward to hearing from you!
| Brand | Model Number | Description |
|---|---|---|
| Hitachi | KNT50ABM | Compressor - Ec710,nt50ae2,25' Hose Combo |
| Hitachi | N3824A | Nailer - .5"-1.5" Wide Crown Stapler 16Ga |
| Hitachi | N5008A1 | Nailer - Stapler |
| Hitachi | N5008AC | Nailer - 2" 16Ga 1"-2"Standard Crown Construction Stapler |
| Hitachi | N5008AC/P | Nailer - 7/16" 1" - 2" x 16 Gauge Standard Crown Stapler |
| Hitachi | N5008AC2 | Nailer - Stapler |
| Hitachi | N5008AC2M | Miscellaneous - 2 Inch 16 Ga Standard 7/16” Crown Construction Stapler |
| Hitachi | N5010A | Nailer - 1/2" Standard Crown Stapler |
| Hitachi | N5010AM | Miscellaneous - 2 Inch 16 Ga Medium 1/2 Inch Crown Stapler |
| Hitachi | N5021A | Nailer - 15/16" Wide Crown Stapler |
| Hitachi | N5021AM | Miscellaneous - 2 Inch 16 Ga Wide 15/16 Inch Crown Stapler |
| Hitachi | N5024A | Nailer - 1" Wide Crown Stapler |
| Hitachi | N5024A2 | Nailer - Stapler |
| Hitachi | N5024A2M | Miscellaneous - 2” 16 Ga Wide 1 Inch Crown Stapler |
| Hitachi | NH451 | Nailer - "T" Nailer |
| Hitachi | NT50A | Nailer - 18Ga Brad Nailer |
| Hitachi | NT65A | Nailer - 16 Gage Brad Nailer |
| Hitachi | NT65A2 | Nailer - 2-1/2" 16Ga Finish Nailer |
| Hitachi | NT65A3 | Nailer - 16-Gauge Finish Nailer |
| Hitachi | NT65A5 | Nailer - Nailer |
| Hitachi | NT65A5M | Nailer - 2-1/2 Inch 16ga Finish Nailer Pro 2-1/2 Inch 16ga Straight Finish Nailer |
| Hitachi | NV45AA | Nailer - Heavy Duty Coil Nailer |
| Hitachi | NV45AB | Nailer - 1-3/4" Heavy Duty, Roofing Coil Nailer |
| Hitachi | NV45AB2 | Nailer - Side Load Coil Roofing Nailer |
| Hitachi | NV45AB2M | Nailer - 1 3/4 Inch Roofing Coil Nailer Side Load Magazine (Wire Collation) |
| Hitachi | NV45AB3 | Nailer - Nailer |
| Hitachi | NV45AE | Nailer - 1-3/4" Side Load Coil Roofing Nailer |
| Hitachi | NV45AES | Nailer - Nailer |
| Hitachi | NV50A1 | Nailer - Light-Duty Coil Utility Nailer |
| Hitachi | NV50A1M | Nailer - 2 Inch Utility Coil Nailer (Wire Collation) |
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
