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Technical Data Sheet
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FC57270 ✓ 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

CONNECTOR,MULTIPLE,FLUID PRESSUR. Key specifications include material: COPPER ALLOY, thickness: 0.500 INCHES NOMINAL IN, thread_size: 3/8 IN.-24 LOCATION NOT OTHERWISE SPECIFIED IN, thread_class: 2B LOCATION NOT OTHERWISE SPECIFIED, overall_width: 1.250 INCHES NOMINAL IN, overall_length: 1.188 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-164-3582, 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
FC57270
NSN: 4730-00-164-3582
FSC: 4730
CAGE: 63477 — FEDERAL MOGUL CORP SUB WAGNER BRAKE MOOG AUTOMOTIVE DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY
thickness0.500 INCHES NOMINAL IN
thread_size3/8 IN.-24 LOCATION NOT OTHERWISE SPECIFIED IN
thread_class2B LOCATION NOT OTHERWISE SPECIFIED
overall_width1.250 INCHES NOMINAL IN
overall_length1.188 INCHES NOMINAL IN
furnished_itemsSEAT LOCATION NOT OTHERWISE SPECIFIED
connection_styleGASKET SEAL LOCATION NOT OTHERWISE SPECIFIED
style_designator2 FLUID CONNECTIONS
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
thread_provisionTHREADED LOCATION NOT OTHERWISE SPECIFIED
seat_angle_in_deg42.0 LOCATION NOT OTHERWISE SPECIFIED
NSN4730-00-164-3582
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FC57270 · 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
•
THREAD CLASS: 2B LOCATION NOT OTHERWISE SPECIFIED
•
SEAT ANGLE IN DEG: 42.0 LOCATION NOT OTHERWISE SPECIFIED
•
FLUID CONNECTION QUANTITY: 2 LOCATION NOT OTHERWISE SPECIFIED
•
FLUID CONVEYANCE TYPE AND SIZE FOR WHICH DESIGNED: 3/16 IN. OD TUBE IN
•
SCREW THREAD SERIES DESIGNATOR: UNF LOCATION NOT OTHERWISE SPECIFIED
•
BOLT HOLE FLATS SERRATIONS: PROVIDED
•
CONNECTION STYLE: GASKET SEAL LOCATION NOT OTHERWISE SPECIFIED
•
STYLE DESIGNATOR: 2 FLUID CONNECTIONS
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B LOCATION NOT OTHERWISE SPECIFIED
SEAT ANGLE IN DEG42.0 LOCATION NOT OTHERWISE SPECIFIED
FLUID CONNECTION QUANTITY2 LOCATION NOT OTHERWISE SPECIFIED
FLUID CONVEYANCE TYPE AND SIZE FOR WHICH DESIGNED3/16 IN. OD TUBE IN
SCREW THREAD SERIES DESIGNATORUNF LOCATION NOT OTHERWISE SPECIFIED
BOLT HOLE FLATS SERRATIONSPROVIDED
CONNECTION STYLEGASKET SEAL LOCATION NOT OTHERWISE SPECIFIED
STYLE DESIGNATOR2 FLUID CONNECTIONS
THREAD SIZE3/8 IN.-24 LOCATION NOT OTHERWISE SPECIFIED IN
BOLT HOLE FLUID PASSAGEPROVIDED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
R10574Interchangeable
interchangeable cross-reference
interchangeable
1201-2Interchangeable
interchangeable cross-reference
interchangeable
A557Interchangeable
interchangeable cross-reference
interchangeable
74-0400-1810-8Interchangeable
interchangeable cross-reference
interchangeable
QA-5 LITHInterchangeable
interchangeable cross-reference
interchangeable
74-0400-1785-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FC57270?
FC57270 is a CONNECTOR,MULTIPLE,FLUID PRESSUR.
What parts can replace FC57270?
There are 24 known substitutes for FC57270: R10574, 1201-2, A557 and 21 more. Substitute compatibility should be verified for your specific system.
Is FC57270 still available?
FC57270 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: July 2026