Seals, Gaskets & Filtration Sourcing
Radial shaft seals, oil and grease seals, hydraulic and pneumatic seals, O-rings, gaskets, mechanical seals, and filter elements sourced against exact designations and dimensions.
How seals, gaskets & filtration requirements are handled
Sealing and filtration lines are usually consumables, ordered in quantity and repeatedly. That makes them ideal candidates for consolidation with the mechanical spares they support — but it also makes precision essential, because an incorrect lip design or elastomer compound will fail quickly in service.
Shaft seals are identified by shaft diameter, housing bore, and width, together with the lip arrangement and material. Two seals sharing all three dimensions can still be different parts if one has a dust lip, a stainless case, or a different compound. Filtration is identified by element dimensions, micron rating, media type, and the housing it serves.
H&H quotes what you specify and reports only what the supplying source documents about material and origin. We do not certify chemical compatibility, temperature range, or service life.
Major product groups
Rotary and static sealing
- Radial shaft seals, oil seals, and grease seals
- V-rings and axial face seals
- Bearing isolators and labyrinth seals
- Mechanical seals and seal components
- Gaskets, sheet gasket material, and die-cut gaskets
Fluid-power sealing
- Hydraulic rod and piston seals
- Wipers, scrapers, and wear rings
- Pneumatic seals and cylinder seal kits
- O-rings, backup rings, and O-ring kits
- Custom-size and non-standard elastomer seals
Filtration
- Hydraulic filter elements and assemblies
- Pneumatic and compressed-air filtration
- Process and liquid filtration elements
- Lubrication and coolant filtration
- Engine and mobile-equipment filters
- Filter housings, bowls, and indicators
These groups are a starting point, not a limit. Sourcing is driven by the manufacturer and part number you supply, so requirements outside this list are welcome.
What each line item should include
Every quotation is built from the information you supply. Exact part numbers, suffixes, configurations, specifications, quantities, end use, and destination can all affect what can be sourced and whether it is eligible for export.
Submit your exact part numbers for review — H&H does not select, substitute, or approve components on the buyer's behalf.
- Manufacturer designation exactly as marked on the seal or element
- Shaft diameter, housing bore, and seal width
- Lip configuration (single, double, dust lip) and spring type
- Case material and elastomer compound (nitrile, FKM, PTFE, silicone, other)
- Operating media, pressure, temperature range, and surface speed
- O-ring size designation, cross-section, and durometer
- Filter element dimensions, micron rating, media, and end-cap style
- Equipment make, model, and serial where the element is equipment-specific
- Quantity, destination country, and delivery window
What most often delays seals, gaskets & filtration quotations
Most quoting delays on this category are information problems rather than sourcing problems. Addressing the points alongside in your first message usually removes a full round trip.
- Only two of the three seal dimensions supplied
- Compound not specified for an aggressive or high-temperature medium
- Seal identified from a worn marking with no measurement supplied
- Filter requested by micron rating alone without dimensions or housing detail
- Kit requested when individual seals were intended, or the reverse
- Dimensional matches assumed to be equivalents across manufacturers
Industries commonly sourcing these products
Dedicated sourcing pages relevant to this category
Brand names are used only to identify the items buyers describe. Sourcing channels are confirmed per requirement, and H&H does not disclose upstream suppliers.
Multi-manufacturer requirements on one quotation
International buyers rarely need only one brand. A single RFQ can combine several manufacturers in this category with lines from other categories, coordinated by one U.S.-based team. See Multi-Vendor Consolidation for how eligibility is determined.
- One multi-line RFQ can span several manufacturers within and beyond this category.
- Eligible lines are combined into a single commercial quotation and, where practical, one export-ready shipment.
- One U.S. point of contact for revisions, lead-time follow-up, and documentation questions.
- Consolidation eligibility depends on readiness dates, packing requirements, and destination.
Documentation and origin considerations
- Commercial invoice and packing list prepared from the part numbers and quantities you confirm.
- Country of origin is reported only as documented by the supplying source — H&H does not assign or certify origin.
- Export eligibility can depend on the exact part number, configuration, end use, end user, and destination country.
- Destination-country import duties, standards, and clearance requirements remain the buyer's responsibility.
How a requirement moves through H&H
Submit manufacturer, part number, quantity, and destination on the RFQ form. The category is carried through with your request.
Our U.S. team investigates each line through established channels and returns clarifying questions where needed.
Eligible lines are presented on one quotation with the commercial terms applicable to your destination.
On order, compatible items are consolidated and documentation is prepared for shipment.
Common questions
Can you match a seal from its dimensions?
Do you supply complete cylinder seal kits?
Can filters be consolidated with other spares?
Do you certify elastomer compatibility with my process fluid?
Sourcing seals, gaskets & filtration?
Include manufacturer, part number, quantity, and destination. Our U.S.-based team will review and follow up with sourcing options.