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Graco 100992 Nipple Fitting

Graco 100992 Nipple Fitting is an OEM replacement part used in select Graco industrial pump systems. It functions as a drain-back tube or nipple fitting depending on the model.

  • Used in President 10:1 Pump Systems
  • Fits models 205-628, 205-627, and 205-621
  • OEM part ensures proper fit and reliable performance
  • Verify part number in your Graco manual before ordering

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Graco 100992 — Nipple Fitting / Drain-Back Tube

Compatible Machines

This part number appears in Graco industrial finishing / pump system parts lists. Confirm against your unit’s manual before ordering.

  • Graco Model 205-628 (President 10:1 System — Series H)
  • Graco Model 205-627 (President 10:1 System — Series H)
  • Graco Model 205-621 (President 10:1 System — Series 0)

Overview

Graco 100992 is referenced for fluid return / drain-back routing in select Graco pump assemblies. Because listings may describe it as a Nipple Fitting or as a Drain-Back Tube, match the part number directly to your equipment’s exploded diagram for the most accurate replacement.

Key Details

Part Number 100992
Common Descriptions Nipple Fitting / Tube, Drain Back (model-dependent terminology)
Function Used in the return/drain-back path on specific Graco pump systems.
Compatibility Scope Confirmed for select President 10:1 pump assemblies (see list above). May appear in other industrial pump BOMs where 100992 is specified.
Fitment Guidance Verify by model, series, and exploded parts diagram before purchase.

Cross-Reference & Buying Notes

  • If your manual calls it “Tube, Drain Back,” the underlying part number is still 100992 for the models listed.
  • If your application expects a literal pipe nipple with thread specs, confirm the BOM; some catalogs use shorthand naming that can be misleading.
  • When replacing, inspect mating components (seals/ferrules/retainers) and order associated hardware if called out in your diagram.

Frequently Asked Questions

Both labels exist in the market. Official Graco parts lists for certain pump systems reference “Tube, Drain Back” under part 100992; some resellers title it as a nipple fitting. Match the number to your machine’s diagram for certainty.

Confirmed listings include Graco 205-628 (Series H), 205-627 (Series H), and 205-621 (Series 0) from President 10:1 pump systems. If your manual specifies 100992, it will fit even if the product title varies.

Locate your model/series and consult the exploded parts diagram. If the diagram calls out 100992, this is the correct part. Provide your model number and we’ll cross-check before you purchase.

Dimensions can vary by the assembly context. Because 100992 is referenced as a drain-back component in certain manuals, sizing is best confirmed via the model-specific BOM. Share your model and we’ll verify dimensions where available.

Inspect nearby seals, o-rings, and fittings/retainers. Replace any worn parts shown adjacent to 100992 in your diagram to prevent leaks and rework.

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