PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 350-B-1
350-B-1 ✓ 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 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 material: ALUMINUM HOUSING, swage_depth: 0.109 INCHES IN, hole_diameter: 0.500 INCHES NOMINAL IN, overall_width: 4.000 INCHES NOMINAL IN, terminal_type: WIRE LEAD, overall_height: 2.625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-044-4655, 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
350-B-1
NSN: 4730-00-044-4655
FSC: 4730
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialALUMINUM HOUSING
swage_depth0.109 INCHES IN
hole_diameter0.500 INCHES NOMINAL IN
overall_width4.000 INCHES NOMINAL IN
terminal_typeWIRE LEAD
overall_height2.625 INCHES NOMINAL IN
overall_length4.000 INCHES NOMINAL IN
terminal_length0.281 INCHES IN
largest_diameter0.146 INCHES SINGLE END IN
mounting_bracketNOT PROVIDED
overall_diameter0.188 INCHES IN
special_featuresFLUSH MOUNTING
NSN4730-00-044-4655
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 350-B-1 · 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
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
2213-1Interchangeable
interchangeable cross-reference
interchangeable
0N101703Interchangeable
interchangeable cross-reference
interchangeable
R-3FInterchangeable
interchangeable cross-reference
interchangeable
13422Interchangeable
interchangeable cross-reference
interchangeable
444776Interchangeable
interchangeable cross-reference
interchangeable
P24Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 350-B-1?
350-B-1 is a CAPACITOR,FIXED,ELECTROLYTIC.
What parts can replace 350-B-1?
There are 24 known substitutes for 350-B-1: 2213-1, 0N101703, R-3F and 21 more. Substitute compatibility should be verified for your specific system.
Is 350-B-1 still available?
350-B-1 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