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9713478 ✓ 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: COPPER ALLOY, thickness: 0.938 INCHES NOMINAL IN, neck_height: 0.875 INCHES NOMINAL IN, socket_depth: 0.625 INCHES NOMINAL IN, flange_diameter: 6.625 INCHES NOMINAL IN, socket_diameter: 3.500 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 4730-01-248-0051, 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
9713478
NSN: 4730-01-248-0051
FSC: 4730
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialCOPPER ALLOY
thickness0.938 INCHES NOMINAL IN
neck_height0.875 INCHES NOMINAL IN
socket_depth0.625 INCHES NOMINAL IN
flange_diameter6.625 INCHES NOMINAL IN
socket_diameter3.500 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.688 INCHES NOMINAL IN
bolt_hole_quantity8
bolt_circle_diameter5.500 INCHES NOMINAL IN
flange_section_stylePLAIN FACE, SOCKET NECK
nondefinitive_spec/std_dataPR TYPE
NSN4730-01-248-0051
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 9713478 · 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
•
NECK HEIGHT: 0.875 INCHES NOMINAL IN
•
BOLT HOLE DIAMETER: 0.688 INCHES NOMINAL IN
•
SOCKET DEPTH: 0.625 INCHES NOMINAL IN
•
FLANGE DIAMETER: 6.625 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 8
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390 MIL SPEC SINGLE MATERIAL RESPONSE
•
SOCKET DIAMETER: 3.500 INCHES NOMINAL IN
•
THICKNESS: 0.938 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NECK HEIGHT0.875 INCHES NOMINAL IN
BOLT HOLE DIAMETER0.688 INCHES NOMINAL IN
SOCKET DEPTH0.625 INCHES NOMINAL IN
FLANGE DIAMETER6.625 INCHES NOMINAL IN
BOLT HOLE QUANTITY8
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390 MIL SPEC SINGLE MATERIAL RESPONSE
SOCKET DIAMETER3.500 INCHES NOMINAL IN
THICKNESS0.938 INCHES NOMINAL IN
FLANGE SECTION STYLEPLAIN FACE, SOCKET NECK
MATERIALCOPPER ALLOY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
00699067516618Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-20042Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-20042EInterchangeable
interchangeable cross-reference
interchangeable
517-5563843 ITEInterchangeable
interchangeable cross-reference
interchangeable
00699067570115Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1183/8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9713478?
9713478 is a FLANGE,PIPE.
What parts can replace 9713478?
There are 11 known substitutes for 9713478: 00699067516618, MIL-PRF-20042, MIL-PRF-20042E and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9713478?
9713478 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-248-0051. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026