Envelope interchange · 2.52×9.09 in
64×231 mm filter elements
3 elements from 3 brand(s) share this envelope: 64 mm outside diameter and 231 mm overall length (2.52×9.09 in).
Dimensional interchange — verify before substituting. These cartridges fit the
same bowl space; they are not guaranteed drop-in equivalents. Compare grade,
end caps, seals, collapse rating and bypass configuration for the specific duty.
| Model | Brand | ID (mm) | Micron | β rating | Collapse (bar) | Bypass | Seal | Type |
|---|---|---|---|---|---|---|---|---|
| 3.723 RK 10 BN4 | HYDAC | 28.2 | 10 | β10 > 1000 (HYDAC grade convention: β12(c) ≥ 1000) | 20 | housing | Nitrile (Buna-N) | return |
| HD6023 | MANN-FILTER | 27 | — | — | — | housing | — | inline |
| HF35098 | Fleetguard | 29 | 10 | 10 µm at β75(c); 11 µm at β200(c) per ISO 16889 | 12 | housing | — | inline |
Substitution verification checklist
- Filtration grade. Compare at the same ISO 16889 Beta test point — “10 µm nominal” and “12 µm β1000” may be the same physical media.
- End caps & O-rings. Open/closed cap style and seal position block interchange even with identical OD/length.
- Seal compound. NBR is standard for mineral oil; phosphate-esters, high temperatures or bio-oils can demand fluorocarbon.
- Collapse rating. Low-collapse (~20 bar) return elements must never replace high-collapse (210 bar) pressure elements.
- Bypass strategy. Integral bypass valves (e.g. 3.4 bar) vs reusable housing valves change cold-start behaviour.
Frequently asked questions
Are all 64×231 mm filter elements interchangeable?
They share the same physical envelope — 64 mm OD and 231 mm length (2.52×9.09 in) — so they fit the same bowl. Interchangeability ends there: micron/Beta rating, end-cap geometry, seals, collapse rating and bypass configuration differ across the 3 elements listed and must be checked against the duty.
Is it a drop-in replacement if the OD and length match?
Only after verification. Confirm in order: (1) the filtration grade meets the ISO 4406 cleanliness target at the same Beta test point, (2) end-cap and O-ring arrangement is identical, (3) seal compound suits the fluid (NBR vs fluorocarbon), (4) collapse/burst rating fits pressure-line or cold-start conditions, and (5) the bypass strategy (integral valve vs housing valve) matches.
What is 64×231 mm in inches?
64×231 mm converts to approximately 2.52×9.09 in.
Browse all 64 mm OD elements or open the dimensions finder.
Request quote & availability
First reply within 2 business hours · first quotation — including the original brand and 1–2 verified equivalents — within 24 hours on business days.