Hydraulic Filter Items — Quick Reference (English)

Items: RFO 03010· FC-6203

1) RFO 03010— Internal Stock / Material Number

What it is

A plant stock number (warehouse/material number). On its own, the digits do not tell you micron rating, seal type, or dimensions. The only safe authority is the filter housing it belongs to.

How to qualify it (one minute)

• Check the bag/bin label (or BOM line): does it say “element / cartridge”, or “seal kit / repair kit / O-ring kit”?

  
  

• If it is an element: carry it to the filter, read the housing nameplate (model + ports + pressure + flow arrow), and ruler-check height / OD / centre-hole against the old element.

  
  

• If it is a kit: use it only for the equipment the BOM says — not as a filter element.

  
  

Procurement wording (safe)

“RFO 03010 — issue against the equipment tag / housing model written in the BOM. If anyone delivers an element, require housing model + OD + height + seal compound first; if it is a seal/repair kit, issue only that specified kit.”

2) FC-6203— Return-Line / Low-Pressure Canister Element

What it is

A disposable pleated filter element installed inside a pipe-mounted return canister (clamp-band bowl, flow arrow on the head). Oil has already done its work and is heading back to tank; this element guards tank cleanliness.

• FCfamily = return-line duty housing (moderate pressure rating, not pump-discharge)

  
  

• 6203= size/length index that fixes outer diameter, height, and centre-tube fit

  
  

• Seal compound is normally NBR (black/dark grey) unless the nameplate or fluid spec calls out Viton

  
  

What to check before fitting

• Read the filter head nameplate near the ports: it should show the FC model, pressure bar, port size, and a flow arrow.

  
  

• Ruler-check the new element against the old one: height / OD / centre-hole must match.

  
  

• O-ring colour: black/grey = NBR. If the old seal is brown/red, stop and confirm fluid/temperature spec before fitting a different compound.

  
  

Replacement steps

1. Stop pump → open vent/bleed on the head until pressure reads zero.

   
   

2. Support the bowl — don’t let it hang on piping.

   
   

3. Release clamp band → lift element straight out (no prying).

   
   

4. Check bowl bottom for bright metal shavings (pump/gear wear warning).

   
   

5. Wipe seal lands → thin film clean hydraulic oil on O-ring (no grease).

   
   

6. Seat element square on centre support tube → close vent slowly → ΔP indicator green, no seep.

   
   

Procurement wording (safe)

“FC-6203 — Element for the FC-family housing shown on the head nameplate (6203 size). Require supplier to confirm OD / height / centre bore / seal compound before delivery — no ‘looks the same’ substitute.”

3) One-Line BOM (copy-paste)

• RFO 03010— Internal stock/material No. — confirm from housing nameplate / bin tag whether element or kit before use

  
  

• FC-6203— Return-line canister element, fits FC-family housing per head nameplate only (check seal colour: NBR black/grey vs Viton brown/red)

  
  

Field rule (simple, safe)

The metal nameplate on the filter head is always the boss, not the sticker on the box.

If paint hides it, use a ruler on the old element (H / OD) + O-ring colour as your fallback ID, and write those numbers next to the part number on the BOM so Stores can never “guess by digits.”