358c
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DESCRIPTION
Single Spring Mechanical Seal 358C — 3/4″ | PS-358 Equivalent
Equal to: Industry standard 358 / PS-358
Typical applications: Centrifugal pumps, mixers, and other rotating equipment.
Key specs: Shaft size: 3/4″ single spring seal • Seat: 1.375″ x 0.405″ cup • Rotary OD: 1.197″• Working length: 0.875″
Design & construction:
Crimped rotary head (Type N-11)—similar to industry Type C / 21; can also replace Type D / 2 with a simple spring change (in most cases). Electro-polished 304 stainless steel metal parts. Elastomeric bellows. Non-directional (independent of shaft rotation).Materials available (choose from dropdown)
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CAR/CER/NIT — Carbon vs. Ceramic faces, Nitrile elastomers
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CAR/CER/VIT — Carbon vs. Ceramic faces, Viton® elastomers
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SIC/SIC/VIT — Silicon Carbide vs. Silicon Carbide faces, Viton® elastomers
Please click “specifications” below for OEM numbers and Pump Nameplate Data
Have questions? Check out our Single Spring Seal Guide or call us anytime—we’re here to help.
Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.
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SPECIFICATIONS
OEM numbers:
358 CER/CAR/NIT: 466-142-1 , 925-65 , 907-06043 , QM-4509 , 180010 , 9014009 , S936 , 1000001 , 10-479 , KC2.5-15 , KC-5 , KC-8(491) , KS-13 , 1361 , 5479 , 24181 , 3203945000 , 15151 , MD-4090 , 15344, 67562 , 100001 , 1112 , 55-407 , U109-99 , 1616 , 180-206 , PUL-2112 , SJ-2112-C1-00 , 205.016.101
358 CER/CAR/VIT: U8-56F , 25271-850 , SJ-2112-C1-X2 , 70X121-M , 205.093.101
358 SIC/SIC/VIT: 25271-846
Brands: A-C PUMP (A XYLEM Brand) , AURORA PUMPS (A PENTAIR Brand) , BSM PUMP CORPORATION , CARVER PUMP COMPANY , CLEAVER-BROOKS , DEMPSTER INDUSTRIES, LLC , DeVILBISS AIR POWER COMPANY , DOMESTIC PUMP , EAST SIDE MFG. , ESSICK AIR PRODUCTS, INC. , GORMAN-RUPP COMPANY , HYDROMATIC PUMP COMPANY , JACUZZI , KINNEY VACUUM PUMP , LANCASTER PUMP COMPANY , MEGATOR CORPORATION , MONTGOMERY WARD , MOYNO, INC. (A NOV Brand) , MP PUMPS, INC. (Division of GARDNER DENVER) , MURPHY DIESEL , PEABODY BARNES MFG. (Division of CRANE PUMPS & SYSTEMS) , PENTAIR, INC. , PRICE PUMP COMPANY , SERFILCO , STA-RITE INDUSTRIES , STERLING MACHINERY , TACO , U.S. ELECTRICAL MOTORS (A NIDEC Brand) , VERTIFLO PUMP COMPANY , WEIL PUMP COMPANY, INC. (Part of WILO USA)
Brands CAR/CER/VIT only: CONTINENTAL ULTRA PUMPS , WEBER INDUSTRIES, INC.
Pump Nameplate Data:
BJ , BJH , BJV , BJF w/ Motors 1HP , 1750 RPM Up , 2 HP 3500 RPM Up , GAFA , GAHA , GAPB , GAVA
GA-4 , 5 , 6 , 7 and 9 , Self Priming Pump 673 -
PHYSICAL PROPERTIES
T-N11/N22 Seal Heads
Our T-N11/N22 type seal heads are designed with a reduced outer diameter, making them fully compatible with ANSI seal chamber dimensions. The rotary portion of our seal is typically smaller than the stationary seat, and can fit straight box bores where many other seals cannot.
These seals are direct replacements for industry-standard C / 21 models.
Note: The N11/N22 seal designs max shaft size is 2.25″. For larger shafts, please refer to our other seal types.
Have questions? Call us anytime—we’re here to help.



