Compatible with the following models:

New 877-368 877368 Piston O-Ring Replacement part
NV45AA Heavy Duty Coil Nailer, NV45AB 1-3/4" Roofing Coil Nailer, NV45AB2 Side Load Coil Roofing Nailer, NV45AB2(S) Bottom Load Coil Roofing Nailer, NV45AE 1-3/4" Side Load Coil Roofing Nailer, NV50AP2 Full Round Head Nailer, NV50A1 Light Duty Coil Utility Nailer, NV50AA Light Duty Coil Utility Nailer
NH451 "T" Nailer, NT50A 18Ga Brad Nailer, NT65A 16 Gage Brad Nailer, NT65A2 2-1/2" 16Ga Finish Nailer, NT65A3 16-Gauge Finish Nailer
N3824A .5"-1.5" Wide Crown Stapler 16Ga, N5008A1 Stapler, N5008AC 2" 16Ga 1"- 2" Standard Crown Construction Stapler, N5008AC2 Stapler, N5008ACP 7/16" 1" - 2" x 16 Gauge Standard Crown Stapler, N5010A 1/2" Standard Crown Stapler, N5021A 15/16" Wide Crown Stapler, N5024A 1" Wide Crown Stapler, N5024A2 Stapler
Fits NV45AB NV45AB2 NV45AB2(S) N5008AC N5010A NT50A NT65A2 N5008AC N5010A NT50A NT65A2 O-ring Reconstruction Kit is designed for Hitachi coil roof studs and trigger O-rings It is made from high-quality materials and is compatible with Hitachi coil nailers and staplers or replacing Hitachi coil roof studs and trigger O-rings