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Technical Data Sheet
PartsTable / COMPONENT / 50 8IN
50 8IN ✓ 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

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL, thickness: 1.062 INCHES NOMINAL IN, neck_height: 0.625 INCHES NOMINAL IN, flange_diameter: 13.500 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, bolt_hole_diameter: 0.875 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-193-6973, 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
50 8IN
NSN: 4730-00-193-6973
FSC: 4730
CAGE: 78824 — TUBE TURNS TECHNOLOGIES INC (USA)
SPECIFICATIONS
materialSTEEL
thickness1.062 INCHES NOMINAL IN
neck_height0.625 INCHES NOMINAL IN
flange_diameter13.500 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_diameter11.750 INCHES NOMINAL IN
flange_section_styleRAISED FACE, RAISED NECK
raised_face_diameter10.625 INCHES NOMINAL IN
nondefinitive_spec/std_data13 TABLE AND 14 TABLE
NSN4730-00-193-6973
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 50 8IN · 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
•
MATERIAL: STEEL
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
OPERATING PRESSURE AND TYPE: 150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
•
SPECIFICATION/STANDARD DATA: 81349-MIL-F-18180 GOVERNMENT SPECIFICATION
•
NONDEFINITIVE SPEC/STD DATA: 13 TABLE AND 14 TABLE
•
NECK HEIGHT: 0.625 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 11.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED500.0 FAHRENHEIT STEAM DEGF
MATERIALSTEEL
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
OPERATING PRESSURE AND TYPE150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
SPECIFICATION/STANDARD DATA81349-MIL-F-18180 GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATA13 TABLE AND 14 TABLE
NECK HEIGHT0.625 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER11.750 INCHES NOMINAL IN
BOLT HOLE QUANTITY8
RAISED FACE DIAMETER10.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
MIL-F-18180CInterchangeable
interchangeable cross-reference
interchangeable
B16-5-1961Interchangeable
interchangeable cross-reference
interchangeable
M18180/1-027A01AInterchangeable
interchangeable cross-reference
interchangeable
M18180/3-12A01Interchangeable
interchangeable cross-reference
interchangeable
1-6S0Interchangeable
interchangeable cross-reference
interchangeable
M18180/1-007C21AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 50 8IN?
50 8IN is a FLANGE,PIPE.
What parts can replace 50 8IN?
There are 14 known substitutes for 50 8IN: MIL-F-18180C, B16-5-1961, M18180/1-027A01A and 11 more. Substitute compatibility should be verified for your specific system.
Is 50 8IN still available?
50 8IN is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026