Description
The 3M 501 is the filter retainer that holds the 5N11 and 5P71 filters on 3M bayonet cartridges and the 5000 Series assemblies (3M 6000 Series user instructions, Table 7); 100 EA/Case (3M.com listing). Ships in 1–2 business days; most orders arrive in 3–7 business days. Sold by the each.
3M 501 specifications
| Item | Manufacturer data |
|---|---|
| 3M part number | 501 |
| 501 | filter retainer that holds the 5N11 and 5P71 filters on 3M bayonet cartridges and the 5000 Series assemblies (3M 6000 Series user instructions, Table 7); 100 EA/Case |
| Fits | 3M 6000 Series half facepiece, 6500 Series Rugged Comfort half facepiece, 7500 Series half facepiece, 6000 Series full facepiece, FF-400 Series Ultimate FX full facepiece, 7800S Series full facepiece (3M parts lists) |
Source: 3M.com product listings (November 2026); 3M 6000 Series half facepiece user instructions; 3M 6000 Series full facepiece user instructions.
3M stock numbers on this page
| 3M stock number | 3M part number | 3M.com listing name | UPC | Previous stock number |
|---|---|---|---|---|
| 7100211073 | 501 | 3M Filter Retainer 501, 100 EA/Case | 50051138176681 | — |
Source: 3M.com product listings (November 2026); distributor product pages where 3M.com returned no card.
Facepiece pages: 6000 Series half facepiece, 6500 Series Rugged Comfort half facepiece, 7500 Series half facepiece, 6000 Series full facepiece, FF-400 Series Ultimate FX full facepiece, 7800S Series full facepiece.
Catalog data
| Item | Manufacturer data |
|---|---|
| Type | Filter Retainer |
Source: Manufacturer published product data as carried in our catalog.
3M™ 501 filter retainer, box of 20. It holds 3M 5N11 and 5P71 particulate filters (sold separately) on 3M 6000 Series cartridges.
FEATURES
- Easy attachment to the 3M range of half and full face pieces
- Helps provide dual protection against vapor and particulates
- Provides cost-effective filtering solution when multiple filters are needed
Sold by the box
One box holds 20 retainers. The price shown is for the full box; quantity 1 = 1 box (20 retainers).
3M 501 questions
What is the 3M 501? filter retainer that holds the 5N11 and 5P71 filters on 3M bayonet cartridges and the 5000 Series assemblies (3M 6000 Series user instructions, Table 7); 100 EA/Case (3M.com listing).
Which 3M facepieces does the 501 fit? 3M 6000 Series half facepiece, 6500 Series Rugged Comfort half facepiece, 7500 Series half facepiece, 6000 Series full facepiece, FF-400 Series Ultimate FX full facepiece, 7800S Series full facepiece (3M parts lists).
Guides: half mask vs full facepiece · assigned protection factors · what OSHA requires for fit testing · cleaning and storing respirators · cartridge change schedules · P100 vs N95 vs R95 · all respirators by model and hazard.
