PartsTable
Technical Data Sheet
PartsTable / COMPONENT / MIL-PRF-20042E
MIL-PRF-20042E ✓ 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: 0.938 INCHES NOMINAL IN, neck_height: 0.875 INCHES NOMINAL IN, socket_depth: 0.625 INCHES NOMINAL IN, flange_diameter: 6.125 INCHES NOMINAL IN, socket_diameter: 2.875 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-185-6861, 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
MIL-PRF-20042E
NSN: 4730-00-185-6861
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY
thickness0.938 INCHES NOMINAL IN
neck_height0.875 INCHES NOMINAL IN
socket_depth0.625 INCHES NOMINAL IN
flange_diameter6.125 INCHES NOMINAL IN
socket_diameter2.875 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.688 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter5.000 INCHES NOMINAL IN
flange_section_stylePLAIN FACE, SOCKET NECK
end_item_identificationJRN KNOX CLASS FF
NSN4730-00-185-6861
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MIL-PRF-20042E · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
MIL-PRF-20042EInterchangeable
interchangeable cross-reference
interchangeable
MIL-F-20042Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-20042Interchangeable
interchangeable cross-reference
interchangeable
CS4730-0108C053DHInterchangeable
interchangeable cross-reference
interchangeable
5000S4823-1385621Interchangeable
interchangeable cross-reference
interchangeable
517-5563843 ITEM FL15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy MIL-PRF-20042E?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MIL-PRF-20042E?
MIL-PRF-20042E is a HEATING ELEMENT,ELECTRICAL,IMMER.
What parts can replace MIL-PRF-20042E?
There are 12 known substitutes for MIL-PRF-20042E: MIL-PRF-20042E, MIL-F-20042, MIL-PRF-20042 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-PRF-20042E?
MIL-PRF-20042E is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-185-6861. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MIL-PRF-20042E

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026