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7123-501 ✓ 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 CONNECTOR is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: STEEL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-145-5621, 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
7123-501
NSN: 4730-01-145-5621
FSC: 4730
CAGE: 03798 — WESTERBEKE CORPORATION (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL
NSN4730-01-145-5621
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7123-501 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
M-.625-15-23-JSSInterchangeable
interchangeable cross-reference
interchangeable
22038Interchangeable
interchangeable cross-reference
interchangeable
22037Interchangeable
interchangeable cross-reference
interchangeable
SCB53615Interchangeable
interchangeable cross-reference
interchangeable
MC2AInterchangeable
interchangeable cross-reference
interchangeable
MILH11190Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7123-501?
7123-501 is a CONNECTOR.
What parts can replace 7123-501?
There are 17 known substitutes for 7123-501: M-.625-15-23-JSS, 22038, 22037 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7123-501?
7123-501 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-145-5621. 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