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Technical Data Sheet
PartsTable / COMPONENT / M20042-PR250-0800
M20042-PR250-0800 ✓ 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

HEATING ELEMENT,ELECTRICAL,IMMER. Key specifications include material: COPPER ALLOY, thickness: 1.312 INCHES NOMINAL IN, neck_height: 1.375 INCHES NOMINAL IN, flange_diameter: 12.375 INCHES NOMINAL IN, socket_diameter: 8.625 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-541-3204, 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
M20042-PR250-0800
NSN: 4730-00-541-3204
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY
thickness1.312 INCHES NOMINAL IN
neck_height1.375 INCHES NOMINAL IN
flange_diameter12.375 INCHES NOMINAL IN
socket_diameter8.625 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.688 INCHES NOMINAL IN
bolt_hole_quantity14
bolt_circle_diameter11.062 INCHES NOMINAL IN
flange_section_stylePLAIN FACE, SOCKET BRAZING NECK
end_item_identificationHZN BORRESTAL CLASS CV
nondefinitive_spec/std_dataPR TYPE
NSN4730-00-541-3204
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: M20042-PR250-0800 · 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
•
SOCKET DIAMETER: 8.625 INCHES NOMINAL IN
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 8.000 INCHES IN
•
FACE SEATING SURFACE CONDITION: MACHINED
•
BOLT HOLE DIAMETER: 0.688 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 14
•
NECK HEIGHT: 1.375 INCHES NOMINAL IN
•
FLANGE SECTION STYLE: PLAIN FACE, SOCKET BRAZING NECK
TECHNICAL CHARACTERISTICS (FLIS)
SOCKET DIAMETER8.625 INCHES NOMINAL IN
NOMINAL PIPE SIZE FOR WHICH DESIGNED8.000 INCHES IN
FACE SEATING SURFACE CONDITIONMACHINED
BOLT HOLE DIAMETER0.688 INCHES NOMINAL IN
BOLT HOLE QUANTITY14
NECK HEIGHT1.375 INCHES NOMINAL IN
END ITEM IDENTIFICATIONHZN BORRESTAL CLASS CV
FLANGE SECTION STYLEPLAIN FACE, SOCKET BRAZING NECK
MATERIALCOPPER ALLOY
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
MILF20042CInterchangeable
interchangeable cross-reference
interchangeable
MILE20042PLAIN250LBCLASSTYPEPRInterchangeable
interchangeable cross-reference
interchangeable
CS4730-0108A0580JInterchangeable
interchangeable cross-reference
interchangeable
5000S4823-1385621Interchangeable
interchangeable cross-reference
interchangeable
MILF20042Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-20042Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M20042-PR250-0800?
M20042-PR250-0800 is a HEATING ELEMENT,ELECTRICAL,IMMER.
What parts can replace M20042-PR250-0800?
There are 15 known substitutes for M20042-PR250-0800: MILF20042C, MILE20042PLAIN250LBCLASSTYPEPR, CS4730-0108A0580J and 12 more. Substitute compatibility should be verified for your specific system.
Is M20042-PR250-0800 still available?
M20042-PR250-0800 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