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15408721 — FLANGE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

15408721: FLANGE,PIPE.

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 715, thickness: 0.690 INCHES NOMINAL IN, neck_height: 0.750 INCHES NOMINAL IN, bore_diameter: 4.026 INCHES NOMINAL IN, flange_diameter: 9.000 INCHES NOMINAL IN, socket_diameter: 4.505 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-612-0033, 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
15408721
NSN: 4730-01-612-0033
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY 715
thickness0.690 INCHES NOMINAL IN
neck_height0.750 INCHES NOMINAL IN
bore_diameter4.026 INCHES NOMINAL IN
flange_diameter9.000 INCHES NOMINAL IN
socket_diameter4.505 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.625 INCHES NOMINAL IN
bolt_hole_quantity4
bolt_circle_diameter7.500 INCHES NOMINAL IN
flange_section_stylePLAIN FACE, SOCKET BRAZING NECK
face_seating_surface_conditionGROUND
NSN4730-01-612-0033
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 15408721 · 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
•
SOCKET DIAMETER: 4.505 INCHES NOMINAL IN
•
FLANGE DIAMETER: 9.000 INCHES NOMINAL IN
•
FACE SEATING SURFACE CONDITION: GROUND
•
FLANGE SECTION STYLE: PLAIN FACE, SOCKET BRAZING NECK
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
BOLT HOLE DIAMETER: 0.625 INCHES NOMINAL IN
•
NECK HEIGHT: 0.750 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 4
TECHNICAL CHARACTERISTICS
SOCKET DIAMETER4.505 INCHES NOMINAL IN
FLANGE DIAMETER9.000 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONGROUND
FLANGE SECTION STYLEPLAIN FACE, SOCKET BRAZING NECK
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
BOLT HOLE DIAMETER0.625 INCHES NOMINAL IN
NECK HEIGHT0.750 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
BOLT CIRCLE DIAMETER7.500 INCHES NOMINAL IN
BORE DIAMETER4.026 INCHES NOMINAL IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
810-7525226ITEM97Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 15408721?
15408721 is a FLANGE,PIPE.
What parts can replace 15408721?
There is 1 known substitute for 15408721: 810-7525226ITEM97. Substitute compatibility should be verified for your specific system.
What is the NSN for 15408721?
15408721 is cataloged in the U.S. Government catalog under NSN 4730-01-612-0033. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.