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Technical Data Sheet
PartsTable / COMPONENT / 18T12
18T12 ✓ 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

The TRANSFORMER,POWER is a the manufacturer industrial component. Key specifications include overall_width: 4.250 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, overall_height: 4.500 INCHES MAXIMUM IN, overall_length: 5.312 INCHES MAXIMUM IN, mounting_method: BRACKET(S) AND SLOT SINGLE GROUP, frequency_rating: 50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-291-1620, 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
18T12
NSN: 5330-00-291-1620
FSC: 5330
CAGE: 04285 — ATHEY PRODUCTS CORP (USA)
SPECIFICATIONS
overall_width4.250 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
overall_height4.500 INCHES MAXIMUM IN
overall_length5.312 INCHES MAXIMUM IN
mounting_methodBRACKET(S) AND SLOT SINGLE GROUP
frequency_rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
mounting_slot_width0.281 INCHES NOMINAL SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
winding_operating_current12.0 AMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
winding_operating_voltage18.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
mounting_facility_quantity4 SINGLE GROUP
terminal_type_and_quantity10 TAB, SOLDER LUG
NSN5330-00-291-1620
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 18T12 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
D29340PC35Interchangeable
interchangeable cross-reference
interchangeable
G7852PC25Interchangeable
interchangeable cross-reference
interchangeable
G9678PC25Interchangeable
interchangeable cross-reference
interchangeable
250605Interchangeable
interchangeable cross-reference
interchangeable
WWP471Interchangeable
interchangeable cross-reference
interchangeable
WWP471BDQBUKJInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18T12?
18T12 is a TRANSFORMER,POWER.
What parts can replace 18T12?
There are 31 known substitutes for 18T12: D29340PC35, G7852PC25, G9678PC25 and 28 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 18T12?
18T12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-291-1620. 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