O-Ring
O-Ring Cover Cap / Stuffing Box 229 / 90 Nitrile
- Catalogue reference number
- KM-37N
- Catalogue brand
- Kerr
Catalogue fields identify reference material. They do not confirm stock, OEM authorization or interchange. Verify the nameplate, original number and edition.
Catalogue model references
These are retained catalogue associations, not confirmed fitment for your equipment. Choose the model you want to review.
Catalogue specification records
| Original field | Recorded value |
|---|---|
| Weight | 0.00 lb (≈ 0.00 kg, converted) |
| Width | （无） |
| Height | （无） |
| Depth | （无） |
Catalogue description records
The O-Ring Cover Cap / Stuffing Box 229 / 90 Nitrile is an elastomeric sealing ring used at the cover cap and stuffing box area of Kerr KM-3250PT, KMX-3300SHPT and T30M pumps, where it closes the joint to prevent leakage of fluid or pressure. The name follows the standard convention: 229 is the ring size, 90 is the nominal durometer hardness, and Nitrile is the elastomer. It is an aftermarket replacement that interchanges with Kerr part KM-37N.
An O-ring is an elastomeric static or dynamic seal that closes a joint or bore against leakage of fluid or pressure.
Catalogue question records
Original catalogue questions are retained. Fitment and availability need technical review.
- Which pumps does this O-ring fit?
- It fits the Kerr KM-3250PT, KMX-3300SHPT and T30M pump models.
- What do 229 and 90 mean in the name?
- 229 is the standard O-ring size designation and 90 is the nominal durometer hardness; Nitrile is the elastomer material named for the ring.
- What part number does it replace?
- This aftermarket O-ring interchanges with Kerr part number KM-37N, listed for identification only and not indicating OEM manufacture.
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