Graco 17A257 Pump Jam Nut

The Graco 17A257 Pump Jam Nut is a genuine OEM part that secures components in Graco pump assemblies for reliable operation.

Replaces: Part 192723
Fits: Ultra Max II 695 / 795, Mark IV, E-15p
Purpose: Locks pump parts to prevent loosening under vibration

$18.12

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Description

Graco 17A257 Pump Jam Nut – OEM Retaining Nut for Pump Assemblies

The Graco 17A257 Pump Jam Nut is a genuine OEM part designed to secure components within Graco pump assemblies. It ensures stable alignment, prevents loosening during operation, and replaces the older Graco part 192723.

Compatible Machines

This jam nut fits several Graco airless sprayers and pump systems, primarily within the Standard and Mark Series lines:

Graco Ultra Max II 695 (Lo-Boy & Hi-Boy models)
Graco Ultra Max II 795 (Lo-Boy & Hi-Boy models)
Graco Mark IV (Hi-Boy and Standard Series)
Graco E-15p Series Sprayer
Other compatible Graco Standard Series sprayers using similar pump configurations

Key Features

OEM replacement: Direct replacement for Graco part 192723
Secure fit: Locks pump parts in place to maintain alignment
Durable construction: Designed for heavy-duty spraying operations
Prevents loosening: Withstands vibration and fluid pressure

Technical Information

Specification	Details
Part Number	17A257
Replaces	192723
Type	Pump Jam Nut
Category	Pump Assembly Components
Compatible Series	Ultra Max II, Mark Series, Standard Series

Frequently Asked Questions

The 17A257 Pump Jam Nut secures internal pump components to prevent movement caused by vibration or fluid pressure during spraying operations. It maintains tight assembly integrity and ensures smooth pump performance.

It fits Graco Ultra Max II 695 and 795, Mark IV, E-15p, and other Standard Series sprayers. Check your user manual or parts diagram for confirmation.

Yes, Graco 17A257 directly replaces 192723 and provides the same reliable fit and performance within compatible pump assemblies.