877-323, 885-915 is a NR83A / A2 - Air Nailer - Framing Nailers piston driver.

877-323 Piston Driver: Aluminum is crimped into the unilok grooves of the shaft to prevent unscrewing. Hardened steel lock tite and micro-mechanically locked piston driver interface. Guaranteed never to unscrew.

Compatible with: Hitachi:
NR83A2(S) Framing Nailer, Full Head, Plastic Strip Collation (without Depth Adjustment)
NR83A 3-1/4" Full Head Nailer
NR83A3S Strip Nailer
NR83A3 Strip Nailer
NR83A2 Strip Nailer

Compatible with: Hitachi:
NV65AC Coil Pallet Nailer,
NV50A1 Light-Duty Coil Utility Nailer,
NV50AP2 Full Round Head, Coil,
Wire Collation Pasti-Tacker Plus,
NV65AA Nailer.
PACKAGE INCLUDE:
6x877-323 Aftermarket Piston Driver.

Note: The Compatibility Is Just For Reference. Please Compare The Part Number With Your Original One Before Purchasing!

AFTER-SALE GUARANTEE: - You decide you are not satisfied, you can request a replacement or a full refund, no questions! Refund is void if you have installed, used or damaged the item in any way. Item must be returned with its original box, packing materials .If you have any problems please kindly contact us by logging in your Amazon Buyer Account > Click Your Account > your order > Find your order and click Contact Seller we will respond you in one business day.