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Technical Data Sheet
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B16.5 3IN. — 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: 1.250 INCHES NOMINAL IN, neck_height: 2.000 INCHES NOMINAL IN, flange_diameter: 8.250 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, bolt_hole_diameter: 0.750 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 4730-01-332-0209, 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
B16.5 3IN.
NSN: 4730-01-332-0209
FSC: 4730
CAGE: 0FAV4 — GUYON GENERAL PIPING INC P O BOX 1608 HOPEWELL VA 23860-1163 (USA)
SPECIFICATIONS
materialSTEEL
thickness1.250 INCHES NOMINAL IN
neck_height2.000 INCHES NOMINAL IN
flange_diameter8.250 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.750 INCHES NOMINAL IN
bolt_hole_quantity8
raised_face_height0.500 INCHES NOMINAL IN
bolt_circle_diameter6.625 INCHES NOMINAL IN
flange_section_styleRAISED FACE, WELDING NECK
raised_face_diameter5.000 INCHES NOMINAL IN
nondefinitive_spec/std_data18 TABLE
NSN4730-01-332-0209
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B16.5 3IN. · 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
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
NONDEFINITIVE SPEC/STD DATA: 18 TABLE
•
MATERIAL: STEEL
•
SPECIFICATION/STANDARD DATA: 80204-ANSI B16.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A105 ASSN STD SINGLE MATERIAL RESPONSE
•
FLANGE DIAMETER: 8.250 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 8
•
BOLT CIRCLE DIAMETER: 6.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
NONDEFINITIVE SPEC/STD DATA18 TABLE
MATERIALSTEEL
SPECIFICATION/STANDARD DATA80204-ANSI B16.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A105 ASSN STD SINGLE MATERIAL RESPONSE
FLANGE DIAMETER8.250 INCHES NOMINAL IN
BOLT HOLE QUANTITY8
BOLT CIRCLE DIAMETER6.625 INCHES NOMINAL IN
RAISED FACE HEIGHT0.500 INCHES NOMINAL IN
THICKNESS1.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
ANSI B16.5 1 1/2IN.NPT/ASTM A105Interchangeable
interchangeable cross-reference
interchangeable
ANSI B16.5 1 1/2IN.IPSInterchangeable
interchangeable cross-reference
interchangeable
ANSI-B16.5/ASTMInterchangeable
interchangeable cross-reference
interchangeable
3IN. IPS BUTT WELD FLANGEInterchangeable
Same NIIN cross-reference
interchangeable
62B06 3IN.Interchangeable
Same NIIN cross-reference
interchangeable
ASME B16.5Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B16.5 3IN.?
B16.5 3IN. is a FLANGE,PIPE.
What parts can replace B16.5 3IN.?
There are 7 known substitutes for B16.5 3IN.: ANSI B16.5 1 1/2IN.NPT/ASTM A105, ANSI B16.5 1 1/2IN.IPS, ANSI-B16.5/ASTM and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B16.5 3IN.?
B16.5 3IN. is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-332-0209. This indicates validated use in U.S. government and defense supply chains.
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Last verified: September 2026