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12748 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include discharge_pressure: 800.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES, drive_shaft_length: 12.990 INCHES NOMINAL IN, pumping_element_type: PISTON, intake_connection_type: THREADED EXTERNAL, drive_shaft_end_diameter: 1.1792 INCHES MINIMUM AND 1.1800 INCHES MAXIMUM IN, discharge_connection_type: THREADED EXTERNAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-447-3493, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
12748
NSN: 5330-00-447-3493
FSC: 5330
CAGE: 45RP7 — DRESSTA NORTH AMERICA LTD (USA)
SPECIFICATIONS
cylinder_quantity1
discharge_pressure800.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES
drive_shaft_length12.990 INCHES NOMINAL IN
pumping_element_typePISTON
intake_connection_typeTHREADED EXTERNAL
drive_shaft_end_diameter1.1792 INCHES MINIMUM AND 1.1800 INCHES MAXIMUM IN
discharge_connection_typeTHREADED EXTERNAL
pump_reciprocating_designSINGLE ACTING
reciprocating_stroke_typeFIXED
intake_connection_quantity2
maximum_discharge_flow_rate12.0 GALLONS PER MINUTE
discharge_connection_quantity2
NSN5330-00-447-3493
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12748 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: COTTON OR RUBBER SYNTHETIC BOTTOM RING
•
OUTSIDE DIAMETER: 2.500 INCHES NOMINAL IN
•
INSIDE DIAMETER: 1.750 INCHES NOMINAL IN
•
JOINT TYPE: SCARF-PERIPHERAL TOP RING
•
CROSS-SECTIONAL SHAPE STYLE: ANGLE BOTTOM RING
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOTTON OR RUBBER SYNTHETIC BOTTOM RING
OUTSIDE DIAMETER2.500 INCHES NOMINAL IN
MATERIALCOTTON AND RUBBER SYNTHETIC TOP RING
INSIDE DIAMETER1.750 INCHES NOMINAL IN
JOINT TYPESCARF-PERIPHERAL TOP RING
MATERIALCOTTON AND RUBBER SYNTHETIC INTERMEDIATE RING
CROSS-SECTIONAL SHAPE STYLEANGLE BOTTOM RING
CROSS-SECTIONAL SHAPE STYLEU INTERMEDIATE RING
CUT TYPEDIAGONAL TOP RING
CUT TYPEDIAGONAL INTERMEDIATE RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
12748Interchangeable
interchangeable cross-reference
interchangeable
12748-05-50-0035Interchangeable
interchangeable cross-reference
interchangeable
12748-5Interchangeable
interchangeable cross-reference
interchangeable
0310Interchangeable
interchangeable cross-reference
interchangeable
1057Interchangeable
interchangeable cross-reference
interchangeable
ASC1257675Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12748?
12748 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 12748?
There are 7 known substitutes for 12748: 12748, 12748-05-50-0035, 12748-5 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12748?
12748 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-447-3493. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026