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FC673L — 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 BOLT,FLUID PASSAGE is a the manufacturer industrial component. Key specifications include material: STEEL, overall_length: 1.406 INCHES NOMINAL IN, width_across_flats: 0.750 INCHES NOMINAL IN, first_end_thread_class: 2A A, first_end_thread_length: 0.562 INCHES NOMINAL IN, wrenching_feature_style: HEXAGON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-00-777-0218, 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
FC673L
NSN: 4730-00-777-0218
FSC: 4730
CAGE: 63477 — FEDERAL MOGUL CORP SUB WAGNER BRAKE MOOG AUTOMOTIVE DIV (USA)
SPECIFICATIONS
materialSTEEL
overall_length1.406 INCHES NOMINAL IN
width_across_flats0.750 INCHES NOMINAL IN
first_end_thread_class2A A
first_end_thread_length0.562 INCHES NOMINAL IN
wrenching_feature_styleHEXAGON
concentric_hole_diameter0.218 INCHES NOMINAL IN
wrenching_feature_height0.250 INCHES NOMINAL IN
first_end_connection_typeTHREADED EXTERNAL TUBE
first_end_thread_directionRIGHT-HAND
first_end_nominal_thread_size0.500 INCHES IN
first_radial_fluid_hole_diameter0.218 INCHES NOMINAL IN
NSN4730-00-777-0218
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FC673L · 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
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO BOLT END: 1.156 INCHES NOMINAL IN
•
FIRST END THREAD LENGTH: 0.562 INCHES NOMINAL IN
•
FIRST END THREAD CLASS: 2A A
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
DISTANCE FROM FIRST RADIAL HOLE CENTER TO END OF BOLT: 0.765 INCHES NOMINAL IN
•
FIRST END NOMINAL THREAD SIZE: 0.500 INCHES IN
•
FIRST END THREAD QUANTITY PER INCH: 20
•
FIRST DIAMETER FROM WRENCHING FEATURE: 0.531 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO BOLT END1.156 INCHES NOMINAL IN
FIRST END THREAD LENGTH0.562 INCHES NOMINAL IN
FIRST END THREAD CLASS2A A
FIRST END THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM FIRST RADIAL HOLE CENTER TO END OF BOLT0.765 INCHES NOMINAL IN
FIRST END NOMINAL THREAD SIZE0.500 INCHES IN
FIRST END THREAD QUANTITY PER INCH20
FIRST DIAMETER FROM WRENCHING FEATURE0.531 INCHES NOMINAL IN
MATERIALSTEEL
FIRST END CONNECTION TYPETHREADED EXTERNAL TUBE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
714030-014InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
314003InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
714030-14InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7770218InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
F673LInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FC673L?
FC673L is a BOLT,FLUID PASSAGE.
What parts can replace FC673L?
There are 5 known substitutes for FC673L: 714030-014, 314003, 714030-14 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FC673L?
FC673L is cataloged in the Federal Logistics Information System under NSN 4730-00-777-0218. 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: September 2026