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Graco 104376 Cap Screw

Genuine Graco screw cap with precision thread for Ultra series sprayers.

  • Part #: 104376
  • For Models: Ultra 395/495/695/795
  • Thread: 4-40 UNRC-3A
  • Type: Screw Cap

$5.11
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Compatible Graco Equipment

This Graco screw cap is designed as a replacement part for the following sprayer models:

  • Graco Ultra 395
  • Graco Ultra 495
  • Graco Ultra 695
  • Graco Ultra 795

Product Specifications

Manufacturer Part Number 104376
Product Type Screw Cap
Thread Specification 4-40 UNRC-3A
Compatible Series Graco Ultra Series
Material Steel

Product Overview

The Graco 104376 is a genuine replacement screw cap with 4-40 UNRC-3A thread specification, specifically engineered for Graco Ultra series sprayers. This precision fastener provides secure closure for critical components within the spray system. Manufactured to exact Graco specifications, this screw cap ensures proper sealing and maintains the mechanical integrity of your spray equipment under demanding operating conditions.

Frequently Asked Questions

"4-40 UNRC-3A" indicates a Unified National thread: "4" is the screw size, "40" means 40 threads per inch, "UNRC" specifies Unified National Coarse thread, and "3A" denotes a class 3 fit (tight tolerance for external threads).

The 3A thread class ensures precise fit and consistent torque characteristics, which is crucial for proper sealing and preventing leaks in the spray system. Using incorrect thread class components can compromise system integrity.

While the screw cap can often be reused if undamaged, it's recommended to inspect for thread wear, corrosion, or damage after removal. For critical sealing applications, replacement with a new genuine Graco part ensures optimal performance and leak prevention.

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