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Technical Data Sheet
PartsTable / COMPONENT / 663SIZE1-4X1-4X1-4X1-8
663SIZE1-4X1-4X1-4X1-8 ✓ 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

CAPACITOR,FIXED,CERAMIC DIELECTR. Key specifications include material: STEEL OVERALL, leg_length: 1.125 INCHES NOMINAL FIRST END IN, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, operating_pressure: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS, nominal_thread_size: 0.250 INCHES SECOND END 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 4730-00-540-2212, 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
663SIZE1-4X1-4X1-4X1-8
NSN: 4730-00-540-2212
FSC: 4730
CAGE: 14959 — CRANE CO DIV VALVE DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
leg_length1.125 INCHES NOMINAL FIRST END IN
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
operating_pressure6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
nominal_thread_size0.250 INCHES SECOND END IN
maximum_operating_temp37.8 CELSIUS SECOND RESPONSE DEGC
media_for_which_designedWATER-OIL-GAS SINGLE RESPONSE
thread_series_designatorNPT ALL ENDS
NSN4730-00-540-2212
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 663SIZE1-4X1-4X1-4X1-8 · 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
•
MAXIMUM OPERATING TEMP: 37.8 CELSIUS SECOND RESPONSE DEGC
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
MATERIAL: STEEL OVERALL
•
OPERATING PRESSURE: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
NOMINAL THREAD SIZE: 0.250 INCHES FIRST END IN
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SINGLE RESPONSE
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
MAXIMUM OPERATING TEMP37.8 CELSIUS SECOND RESPONSE DEGC
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
MATERIALSTEEL OVERALL
OPERATING PRESSURE6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE0.250 INCHES FIRST END IN
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
NOMINAL THREAD SIZE0.125 INCHES FOURTH END IN
LEG LENGTH1.125 INCHES NOMINAL FOURTH END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
211697Interchangeable
interchangeable cross-reference
interchangeable
3743886Interchangeable
interchangeable cross-reference
interchangeable
12410Interchangeable
interchangeable cross-reference
interchangeable
632-58371Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 663SIZE1-4X1-4X1-4X1-8?
663SIZE1-4X1-4X1-4X1-8 is a CAPACITOR,FIXED,CERAMIC DIELECTR.
What parts can replace 663SIZE1-4X1-4X1-4X1-8?
There are 4 known substitutes for 663SIZE1-4X1-4X1-4X1-8: 211697, 3743886, 12410 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 663SIZE1-4X1-4X1-4X1-8?
663SIZE1-4X1-4X1-4X1-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-540-2212. 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