3 PACK 877-323 Aftermarket Piston Driver for Hitachi NR83A NR83A2 NR83A2(S) NR83A3 Framing Nailer - Replaces 877323, 885-915, SP 877-323, SP 885-915,($21.59Value)

Description

Compatibility: Fits Hitachi NR83A, NR83A2, NR83A2(S), NR83A3 framing strip nailers. Replaces OEM part numbers 877-323, 885-915, SP 877-323, SP 885-915, 878-303, 878-649, 877-376. Material & Hardness: Constructed from heat-treated 6150 tool steel, Rockwell hardness 50-52. Piston machined from aerospace-grade 2024 aluminum for strength and weight optimization. Mechanical Locking Design: Aluminum piston is crimped into the Unilok grooves of the steel shaft to prevent separation. Hardened steel thread-locking compound combined with micro-mechanical interface ensures the piston driver will never loosen or unscrew under repeated impact. Package Includes: 3 x 877-323 aftermarket piston drivers. Each unit is precision-manufactured to meet or exceed OEM specifications for reliable performance and extended service life. Installation Note: Direct replacement — no modification required. Confirm your tool model and existing part number before ordering to ensure compatibility. DIRECT REPLACEMENT PISTON DRIVER (3-PACK): This set includes three 877-323 aftermarket piston drivers designed for Hitachi NR83A, NR83A2, and NR83A2(S) framing strip nailers. Replaces part numbers: 877-323, 877323, 885-915, 885915, SP 877-323, SP 885-915, 878-303, 878-649, 877-376. MATERIAL SPECIFICATION – PISTON: Constructed from aerospace-grade #2024 aluminum. Material selected for high strength-to-weight ratio and durability under repeated impact loading conditions. MATERIAL SPECIFICATION – DRIVER SHAFT: Manufactured from heat-treated 6150 tool steel. Hardness rating: Rockwell 50-52. Provides resistance to wear, deformation, and impact fatigue. MECHANICAL LOCKING DESIGN: Aluminum piston is crimped into the Unilok grooves of the shaft to prevent unscrewing. Features hardened steel locking compound and micro-mechanically locked piston driver interface. COMPATIBLE TOOLS: Designed for use with Hitachi (now Metabo HPT) framing nailer models: NR83A NR83A2 NR83A2(S) INSTALLATION: Direct drop-in replacement. Confirm compatibility with your existing tool model and part number before ordering.