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M18180/1-053A01D — Technical Data Sheet

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— · 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 FLANGE,PIPE is a the manufacturer industrial component. 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 product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-01-313-5440, 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
M18180/1-053A01D
NSN: 4730-01-313-5440
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
NSN4730-01-313-5440
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: M18180/1-053A01D · 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: 0.750 INCHES IN
•
BOLT HOLE DIAMETER: 0.625 INCHES NOMINAL IN
•
NECK HEIGHT: 0.375 INCHES NOMINAL IN
•
THICKNESS: 0.625 INCHES NOMINAL IN
•
RAISED FACE HEIGHT: 0.250 INCHES NOMINAL IN
•
SPECIFICATION/STANDARD DATA: 81349-MIL-F-18180/1 GOVERNMENT SPECIFICATION
•
RAISED FACE DIAMETER: 1.688 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 1 GRADE
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.750 INCHES IN
BOLT HOLE DIAMETER0.625 INCHES NOMINAL IN
NECK HEIGHT0.375 INCHES NOMINAL IN
THICKNESS0.625 INCHES NOMINAL IN
RAISED FACE HEIGHT0.250 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATA81349-MIL-F-18180/1 GOVERNMENT SPECIFICATION
RAISED FACE DIAMETER1.688 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 GRADE
MATERIALSTEEL
FACE SEATING SURFACE CONDITIONMACHINED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
B16.5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-F-18180/1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SERIES150WELDINGInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
65-1/4 SCHED 80InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
ASTM A105 GR1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
65-1-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M18180/1-053A01D?
M18180/1-053A01D is a FLANGE,PIPE.
What parts can replace M18180/1-053A01D?
There are 12 known substitutes for M18180/1-053A01D: B16.5, MIL-F-18180/1, SERIES150WELDING and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M18180/1-053A01D?
M18180/1-053A01D is cataloged in the Federal Logistics Information System under NSN 4730-01-313-5440. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: October 2026