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166M1245A1 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The CORE ASSEMBLY,FLUID COOLER is a the manufacturer industrial component. Key specifications include material: COPPER AND NICKEL ALLOY OVERALL, core_length: 63.500 INCHES NOMINAL IN, core_diameter: 14.500 INCHES NOMINAL IN, style_designator: STRAIGHT PLAIN TUBE, CYLINDRICAL, heat_transfer_method: INDIRECT, end_item_identification: ITT STANDARD FRESH WATER COOLER TYPE EU,SIZE 1245. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-014-4027, 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
166M1245A1
NSN: 4730-00-014-4027
FSC: 4730
CAGE: 51900 — ITT CORPORATION DBA ITT STANDARD (USA)
SPECIFICATIONS
materialCOPPER AND NICKEL ALLOY OVERALL
core_length63.500 INCHES NOMINAL IN
core_diameter14.500 INCHES NOMINAL IN
style_designatorSTRAIGHT PLAIN TUBE, CYLINDRICAL
heat_transfer_methodINDIRECT
end_item_identificationITT STANDARD FRESH WATER COOLER TYPE EU,SIZE 1245
NSN4730-00-014-4027
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 166M1245A1 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.500 INCHES IN
•
NOMINAL THREAD SIZE: 0.500 INCHES EXTERNAL IN
•
EXTERIOR COLOR: YELLOW OVERALL
•
CONNECTION STYLE: PLAIN
•
BODY TYPE: CORED
•
CORE DEPTH: 0.718 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
BODY CORE DIAMETER: 0.578 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.500 INCHES IN
NOMINAL THREAD SIZE0.500 INCHES EXTERNAL IN
EXTERIOR COLORYELLOW OVERALL
CONNECTION STYLEPLAIN
BODY TYPECORED
CORE DEPTH0.718 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND EXTERNAL
BODY CORE DIAMETER0.578 INCHES NOMINAL IN
HEAD TYPESOLID
END ITEM IDENTIFICATIONHARNISCHFEGER CORP.;MODEL M320T2,CRANE TRUCK MOUNTED,NSN 3810-00-151-4431; NSN 2330-01-275-7474 HEMAT TRAILER; NSN 4210-01-486-1035 TFFT (TACTICAL FIRE FIGHTING TRUCK); HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
4730PL0773105Interchangeable
interchangeable cross-reference
interchangeable
2EH663Interchangeable
interchangeable cross-reference
interchangeable
J531Interchangeable
interchangeable cross-reference
interchangeable
PC127950Interchangeable
interchangeable cross-reference
interchangeable
166M124B1Interchangeable
interchangeable cross-reference
interchangeable
166M1245B1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 166M1245A1?
166M1245A1 is a CORE ASSEMBLY,FLUID COOLER.
What parts can replace 166M1245A1?
There are 15 known substitutes for 166M1245A1: 4730PL0773105, 2EH663, J531 and 12 more. Substitute compatibility should be verified for your specific system.
Is 166M1245A1 still available?
166M1245A1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026