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Technical Data Sheet
PartsTable / MRO / 481263
481263 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 CAPACITOR,FIXED,ELECTROLYTIC is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include anode_type: SOLID, body_style: W/TWIST TAB MTG, TERMINAL(S) ON ONE END, body_length: 2.000 INCHES NOMINAL IN, body_diameter: 1.000 INCHES NOMINAL IN, terminal_length: 0.250 INCHES NOMINAL IN, features_provided: HERMETICALLY SEALED CASE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-075-2773, 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
MRO→ MRO_GENERAL→ 481263
NSN: 4730-00-075-2773
FSC: 4730
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
anode_typeSOLID
body_styleW/TWIST TAB MTG, TERMINAL(S) ON ONE END
body_length2.000 INCHES NOMINAL IN
body_diameter1.000 INCHES NOMINAL IN
terminal_length0.250 INCHES NOMINAL IN
section_quantity3
features_providedHERMETICALLY SEALED CASE
reliability_indicatorNOT ESTABLISHED
electrical_polarizationPOLARIZED
case_insulation_materialPLASTIC
nonderated_operating_temp85.0 CELSIUS MAXIMUM DEGC
terminal_surface_treatmentSOLDER
NSN4730-00-075-2773
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 481263 · 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
•
FLANGE FACE DESIGN: RAISED STRAIGHT SECOND END
•
THREAD QUANTITY PER INCH: 12 FIRST END
•
FLANGE SHAPE: TRIANGULAR WITH HOLES SECOND END
•
LEG LENGTH: 1.440 INCHES MINIMUM AND 1.480 INCHES MAXIMUM FIRST END IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS4135 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 1.186 INCHES FIRST END IN
•
CONNECTION STYLE: INVERTED FLARE (TUBE) FIRST END
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)
FLANGE FACE DESIGNRAISED STRAIGHT SECOND END
THREAD QUANTITY PER INCH12 FIRST END
FLANGE SHAPETRIANGULAR WITH HOLES SECOND END
LEG LENGTH1.440 INCHES MINIMUM AND 1.480 INCHES MAXIMUM FIRST END IN
LEG LENGTH2.380 INCHES MINIMUM AND 2.420 INCHES MAXIMUM SECOND END IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4135 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE1.186 INCHES FIRST END IN
CONNECTION STYLEINVERTED FLARE (TUBE) FIRST END
THREAD CLASS3A FIRST END A
THREAD SERIES DESIGNATORUNS FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
481263Interchangeable
interchangeable cross-reference
interchangeable
AFH3-129Interchangeable
interchangeable cross-reference
interchangeable
CTM3668Interchangeable
interchangeable cross-reference
interchangeable
B365-CH807Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 481263?
481263 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 481263?
There are 4 known substitutes for 481263: 481263, AFH3-129, CTM3668 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 481263?
481263 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-075-2773. 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