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Technical Data Sheet
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WWF406 — 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,BLIND is a the manufacturer industrial component. Key specifications include material: IRON, thickness: 0.500 INCHES NOMINAL IN, neck_height: 0.312 INCHES NOMINAL IN, flange_diameter: 4.620 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, bolt_hole_diameter: 0.620 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System under NSN 4730-00-189-2685, 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
WWF406
NSN: 4730-00-189-2685
FSC: 4730
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialIRON
thickness0.500 INCHES NOMINAL IN
neck_height0.312 INCHES NOMINAL IN
flange_diameter4.620 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.620 INCHES NOMINAL IN
bolt_hole_quantity4
nominal_thread_size1.250 INCHES IN
bolt_circle_diameter3.500 INCHES NOMINAL IN
flange_section_stylePLAIN FACE, RAISED NECK
reducer_flange_hole_typeCONCENTRIC
thread_quantity_per_inch8
NSN4730-00-189-2685
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: WWF406 · 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
•
MATERIAL: IRON
•
THICKNESS: 0.440 INCHES NOMINAL IN
•
FLANGE SECTION STYLE: PLAIN FACE, RAISED NECK
•
NOMINAL THREAD SIZE: 1.000 INCHES IN
•
NONDEFINITIVE SPEC/STD DATA: 5 TABLE
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
OPERATING PRESSURE AND TYPE: 125.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED AND 175.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
•
SPECIFICATION/STANDARD DATA: 80204-B16.1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS
MATERIALIRON
THICKNESS0.440 INCHES NOMINAL IN
FLANGE SECTION STYLEPLAIN FACE, RAISED NECK
NOMINAL THREAD SIZE1.000 INCHES IN
NONDEFINITIVE SPEC/STD DATA5 TABLE
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
OPERATING PRESSURE AND TYPE125.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED AND 175.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
SPECIFICATION/STANDARD DATA80204-B16.1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
BOLT HOLE DIAMETER0.625 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONMACHINED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
13218E0032-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
0001415InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B16.1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
490InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
WWF406CLASS125InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
WW-F-406ACC07InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WWF406?
WWF406 is a FLANGE,PIPE,BLIND.
What parts can replace WWF406?
There are 14 known substitutes for WWF406: 13218E0032-3, 0001415, B16.1 and 11 more. Substitute compatibility should be verified for your specific system.
Is WWF406 still available?
WWF406 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: October 2026