PartsTable
Technical Data Sheet
PartsTable / COMPONENT / MIL-F-18180/1

MIL-F-18180/1 — Technical Data Sheet

✓ 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

THERMAL RELEASE,CIRCUIT BREAKER. Key specifications include material: STEEL, thickness: 0.625 INCHES NOMINAL IN, neck_height: 0.375 INCHES NOMINAL IN, flange_diameter: 4.625 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, bolt_hole_diameter: 0.625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System under NSN 4730-00-996-0250, 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-F-18180/1
NSN: 4730-00-996-0250
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL
thickness0.625 INCHES NOMINAL IN
neck_height0.375 INCHES NOMINAL IN
flange_diameter4.625 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.625 INCHES NOMINAL IN
bolt_hole_quantity4
raised_face_height0.250 INCHES NOMINAL IN
bolt_circle_diameter3.250 INCHES NOMINAL IN
flange_section_styleRAISED FACE, WELDING NECK
raised_face_diameter1.688 INCHES NOMINAL IN
nondefinitive_spec/std_data1 GRADE
NSN4730-00-996-0250
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MIL-F-18180/1 · 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
•
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED: 500.0 FAHRENHEIT STEAM DEGF
•
NECK HEIGHT: 2.875 INCHES NOMINAL IN
•
OPERATING PRESSURE AND TYPE: 150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
FLANGE DIAMETER: 13.500 INCHES NOMINAL IN
•
THICKNESS: 1.125 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 11.750 INCHES NOMINAL IN
•
FACE SEATING SURFACE CONDITION: SERRATED
TECHNICAL CHARACTERISTICS
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED500.0 FAHRENHEIT STEAM DEGF
NECK HEIGHT2.875 INCHES NOMINAL IN
OPERATING PRESSURE AND TYPE150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
FLANGE DIAMETER13.500 INCHES NOMINAL IN
THICKNESS1.125 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER11.750 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONSERRATED
NOMINAL PIPE SIZE FOR WHICH DESIGNED8.000 INCHES IN
FLANGE SECTION STYLERAISED FACE, WELDING NECK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
368301-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5244InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
568-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SERIES150WELDINGInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B16.5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
403293-04InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy MIL-F-18180/1?
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-F-18180/1?
MIL-F-18180/1 is a THERMAL RELEASE,CIRCUIT BREAKER.
What parts can replace MIL-F-18180/1?
There are 19 known substitutes for MIL-F-18180/1: 368301-1, 5244, 568-6 and 16 more. Substitute compatibility should be verified for your specific system.
Is MIL-F-18180/1 still available?
MIL-F-18180/1 is currently cancelled.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MIL-F-18180/1

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