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MIL-F-18180 — THERMAL RELEASE,CIRCUIT BREAKER

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MIL-F-18180: THERMAL RELEASE,CIRCUIT BREAKER.

THERMAL RELEASE,CIRCUIT BREAKER. Key specifications include material: STEEL, thickness: 0.563 INCHES NOMINAL IN, neck_height: 2.063 INCHES NOMINAL IN, flange_diameter: 3.750 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, bolt_hole_diameter: 0.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-174-5943, 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
NSN: 4730-00-174-5943
NIINs: 001745943, 001936971, 002354080, 002354083, 002738240, 002773399, 005404489, 007203852, 008454992, 010159326, 010159327, 010159328, 010163042, 010223946, 010225679, 010237771, 010237772, 010238368, 010238666, 010552660, 010552661, 010552662, 010552663, 010552664, 010552665, 011150906, 011153488, 011157437, 011198121, 011340883, 011464606, 011487402, 011496707, 011505413, 011588477, 011595839, 011924467, 011927160, 011929692, 011951900, 012366014, 012366015, 012426381, 012431433, 012467754, 012633120, 012893606, 012904971, 012909713, 013088787, 013088788, 013203756
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL
thickness0.563 INCHES NOMINAL IN
neck_height2.063 INCHES NOMINAL IN
flange_diameter3.750 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_diameter2.625 INCHES NOMINAL IN
flange_section_styleRAISED FACE, WELDING NECK
raised_face_diameter1.375 INCHES NOMINAL IN
nondefinitive_spec/std_data18 TABLE
NSN4730-00-174-5943
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MIL-F-18180 · 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: 1.915 INCHES NOMINAL IN
•
FLANGE DIAMETER: 6.125 INCHES NOMINAL IN
•
FACE SEATING SURFACE CONDITION: MACHINED
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 1.500 INCHES IN
•
SOCKET DEPTH: 0.500 INCHES NOMINAL IN
•
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED: 850.0 FAHRENHEIT STEAM AND 425.0 FAHRENHEIT WATER DEGF
•
OPERATING PRESSURE AND TYPE: 600.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 1000.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
•
FLANGE SECTION STYLE: RAISED FACE, SOCKET NECK
TECHNICAL CHARACTERISTICS
SOCKET DIAMETER1.915 INCHES NOMINAL IN
FLANGE DIAMETER6.125 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONMACHINED
NOMINAL PIPE SIZE FOR WHICH DESIGNED1.500 INCHES IN
SOCKET DEPTH0.500 INCHES NOMINAL IN
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED850.0 FAHRENHEIT STEAM AND 425.0 FAHRENHEIT WATER DEGF
OPERATING PRESSURE AND TYPE600.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 1000.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
FLANGE SECTION STYLERAISED FACE, SOCKET NECK
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
BOLT HOLE DIAMETER0.875 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
M18180/2-56A09ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5000S4823-64496Reference document
Same NSN cross-reference
Reference document — Secondary reference
ASAB16-5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MIL-F-18180?
MIL-F-18180 is a THERMAL RELEASE,CIRCUIT BREAKER.
What parts can replace MIL-F-18180?
There are 3 known substitutes for MIL-F-18180: M18180/2-56A09A, 5000S4823-64496, ASAB16-5. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-F-18180?
MIL-F-18180 is cataloged in the U.S. Government catalog under NSN 4730-00-174-5943. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.