There is some confusion between the PNR-CD21NABK and CD21NABK cable glands from Sealcon. Customers often wonder what the difference is between the two. Functionally they are the same part, but the PNR-CD21NABK (4094-PNR-CD21NABK-ND) comes pre-packed with the nut and o-ring included. The CD21NABK (4094-CD21NA-BK-ND) is just the cable gland without the nut and o-ring.
If you’ve ordered the CD21NABK instead of the PNR-CD21NABK or need replacement nuts or o-rings for either, on their website the manufacturer recommends the NN-21-BK (4094-NN-21-BK-ND) nut and the OR-34-BN o-ring.
We do not currently carry the OR-34-BN, however we do carry a similar alternative. Please review the datasheets to ensure the alternative will work for your application.
| MFR PART # | ZUSAH2.5X23 |
|---|---|
| DIGIKEY PART # | 4753-ZUSAH2.5X23-ND |
| MANUFACTURER | USA Industrials |
| DESCRIPTION | O-Ring Buna N (Nitrile NBR) Black 70 Shore A |