Style QR Buna-N Quattro Rings, -111 Size, 5 Per Pack

Alternate Part Numbers Alternate Part Number C1FC78, Alternate Part Number MI-01234885, Alternate Part Number MINO-00407X70515	Dash Size -111	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Package Qty. 5	Supplier Part Number QR-4111	Product Weight 0.01 lbs

Product Questions & Answers

What size o-ring housing does this fit?

Question by: Lyle Y on Aug 16, 2025, 6:20 PM

This Buna-N quattro ring is a -111 dash size, so it'll fit housings designed for that standard.

Answer by: Customer Support on Aug 18, 2025, 7:50 AM

i’ve got an old quad ring marked -111, is this the same size and how many come in the pack

Question by: Rhonda R on Jan 18, 2026, 8:10 PM

For sizing, this one is dash size -111, and the pack quantity is 5 rings.

Answer by: Customer Support on Jan 19, 2026, 8:35 PM

Will these Buna-N rings hold up okay in a hydraulic system running around 200 degrees F?

Question by: Clint J on Jun 10, 2025, 10:35 AM

Buna-N quattro rings like these are generally good up to about 240°F, so you should be fine at 200.

Answer by: Customer Support on Jun 12, 2025, 6:22 AM

Model Number	Dash Size	Package Qty.
QR-4111	-111	5
QR-4212	-212	5
QR-4005	-005	6
QR-4010	-010	6
QR-4011	-011	6
QR-4016	-016	5
QR-4110	-110	5
QR-4112	-112	5
QR-4113	-113	5
QR-4114	-114	5
QR-4115	-115	5
QR-4116	-116	5
QR-4117	-117	5
QR-4210	-210	5
QR-4211	-211	5
QR-4213	-213	5
QR-4214	-214	5
QR-4215	-215	5
QR-4216	-216	4
QR-4217	-217	4
QR-4218	-218	4
QR-4219	-219	4