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B16-5-1953TABLE21 ✓ 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: 0.375 INCHES NOMINAL IN, neck_height: 0.188 INCHES NOMINAL IN, flange_diameter: 3.500 INCHES NOMINAL IN, furnished_items: BOLT, style_designator: ROUND, ONE BOLT HOLE CIRCLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-235-4075, 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
B16-5-1953TABLE21
NSN: 4730-00-235-4075
FSC: 4730
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
materialSTEEL
thickness0.375 INCHES NOMINAL IN
neck_height0.188 INCHES NOMINAL IN
flange_diameter3.500 INCHES NOMINAL IN
furnished_itemsBOLT
style_designatorROUND, ONE BOLT HOLE CIRCLE
features_providedCOUNTERBORED BOLT HOLES
surface_treatmentPAINT
bolt_hole_diameter0.625 INCHES NOMINAL IN
bolt_hole_quantity4
raised_face_height0.062 INCHES NOMINAL IN
bolt_circle_diameter7.000 INCHES NOMINAL IN
NSN4730-00-235-4075
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B16-5-1953TABLE21 · 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
•
FLANGE SECTION STYLE: RAISED FACE, RAISED NECK
•
BOLT CIRCLE DIAMETER: 2.375 INCHES NOMINAL IN
•
RAISED FACE HEIGHT: 0.062 INCHES NOMINAL IN
•
BOLT HOLE DIAMETER: 0.625 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED: 500.0 FAHRENHEIT STEAM DEGF
•
SPECIFICATION/STANDARD DATA: 80204-ASA B16.5/TABLE 13/14 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
OPERATING PRESSURE AND TYPE: 150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE SECTION STYLERAISED FACE, RAISED NECK
BOLT CIRCLE DIAMETER2.375 INCHES NOMINAL IN
RAISED FACE HEIGHT0.062 INCHES NOMINAL IN
BOLT HOLE DIAMETER0.625 INCHES NOMINAL IN
MATERIALSTEEL
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED500.0 FAHRENHEIT STEAM DEGF
SPECIFICATION/STANDARD DATA80204-ASA B16.5/TABLE 13/14 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
OPERATING PRESSURE AND TYPE150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
NECK HEIGHT0.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
E-3373Interchangeable
interchangeable cross-reference
interchangeable
M18180/3-03A01Interchangeable
interchangeable cross-reference
interchangeable
653206Interchangeable
interchangeable cross-reference
interchangeable
B16-5-1953TABLE21Interchangeable
interchangeable cross-reference
interchangeable
22010Interchangeable
interchangeable cross-reference
interchangeable
554Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B16-5-1953TABLE21?
B16-5-1953TABLE21 is a FLANGE,PIPE.
What parts can replace B16-5-1953TABLE21?
There are 9 known substitutes for B16-5-1953TABLE21: E-3373, M18180/3-03A01, 653206 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B16-5-1953TABLE21?
B16-5-1953TABLE21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-235-4075. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026