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Technical Data Sheet
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M18180/1-027A01A — 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: 0.938 INCHES NOMINAL IN, neck_height: 2.000 INCHES NOMINAL IN, flange_diameter: 7.500 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, bolt_hole_diameter: 0.875 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 4730-00-256-8506, 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
M18180/1-027A01A
NSN: 4730-00-256-8506
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL
thickness0.938 INCHES NOMINAL IN
neck_height2.000 INCHES NOMINAL IN
flange_diameter7.500 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.875 INCHES NOMINAL IN
bolt_hole_quantity8
raised_face_height0.062 INCHES NOMINAL IN
bolt_circle_diameter5.875 INCHES NOMINAL IN
flange_section_styleRAISED FACE, WELDING NECK
raised_face_diameter4.125 INCHES NOMINAL IN
nondefinitive_spec/std_data16 TABLE AND 17 TABLE
NSN4730-00-256-8506
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: M18180/1-027A01A · 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: 2.500 INCHES IN
•
BOLT HOLE DIAMETER: 0.875 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A105,GRADES 1 AND 2 AND A181,GRADES 1 AND 2 ASSN STD SINGLE MATERIAL RESPONSE
•
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED: 850.0 FAHRENHEIT GAS AND 850.0 FAHRENHEIT OIL AND 850.0 FAHRENHEIT WATER DEGF
•
MATERIAL: STEEL
•
OPERATING PRESSURE AND TYPE: 300.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED AND 300.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED AND 300.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
•
NONDEFINITIVE SPEC/STD DATA: 16 TABLE AND 17 TABLE
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL PIPE SIZE FOR WHICH DESIGNED2.500 INCHES IN
BOLT HOLE DIAMETER0.875 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A105,GRADES 1 AND 2 AND A181,GRADES 1 AND 2 ASSN STD SINGLE MATERIAL RESPONSE
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED850.0 FAHRENHEIT GAS AND 850.0 FAHRENHEIT OIL AND 850.0 FAHRENHEIT WATER DEGF
MATERIALSTEEL
OPERATING PRESSURE AND TYPE300.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED AND 300.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED AND 300.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
NONDEFINITIVE SPEC/STD DATA16 TABLE AND 17 TABLE
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
THICKNESS0.938 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER5.875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
B16-5-1961Interchangeable
interchangeable cross-reference
interchangeable
16-8INInterchangeable
interchangeable cross-reference
interchangeable
M18180/3-13A01Interchangeable
interchangeable cross-reference
interchangeable
50Interchangeable
interchangeable cross-reference
interchangeable
B16-5-2017Interchangeable
interchangeable cross-reference
interchangeable
31Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M18180/1-027A01A?
M18180/1-027A01A is a FLANGE,PIPE.
What parts can replace M18180/1-027A01A?
There are 15 known substitutes for M18180/1-027A01A: B16-5-1961, 16-8IN, M18180/3-13A01 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M18180/1-027A01A?
M18180/1-027A01A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-256-8506. 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.
PartsTable Design LLC · partstable.com
Last verified: September 2026