303077 Replacement Rubber, 5.5 Inch Series B

The 303077 Replacement Rubber is a 5.5-inch Series B replacement part for a reciprocating pump, supplied to match the original component's form and fit. It is an aftermarket part offered under part number 303077 and ships at about 2.4 lb.
What it is
This is a replacement part for the listed reciprocating pump models, supplied to match the original component's form and fit.
Specifications
| Property | Value |
|---|---|
| Weight | 2.40 lb (≈ 1.09 kg, converted) |
| Width | 7.00 in / 17.8 cm |
| Height | 8.50 in / 21.6 cm |
| Depth | 2.00 in / 5.1 cm |
Manufacturer technical notes
Series B 5.5" Replacement Rubber Seal (SKU: 303077) ASTM D2000-standard NBR rubber with optimized vulcanization crosslinking (≥90% density), hardness 70±5 Shore A, oil resistance ISO 1817 Class B, compatible with API 7K mud pump sealing grooves (pressure differential ≥35MPa), surface roughness Ra≤0.8μm, NSF61 drinking water safety certified
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing 303077.
FAQ
- What is the 303077 Replacement Rubber?
- It is a 5.5-inch Series B replacement part for a reciprocating pump, supplied to match the original component by form and fit.
- Is 303077 a genuine OEM part?
- It is an aftermarket replacement part offered under part number 303077, intended to match the original by form and fit.
Related parts
All brand names, model numbers and part numbers are used for identification and cross-reference only and do not imply original-equipment manufacture. This is an aftermarket replacement part.
Need a quote or part lookup? Contact our team.