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Technical Data Sheet
PartsTable / COMPONENT / 3H0121
3H0121 ✓ 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,PAPER DIELECTRIC. Key specifications include end_type: COMPRESSION RING AND NUT FIRST END, material: PLASTIC CASE, unit_type: BENCH, base_style: SINGLE CONTACT BAYONET CANDELABRA, body_style: W/O MTG HOLE(S)/SLOT(S), TERMINAL(S) ON ONE SURFACE, body_width: 1.310 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-245-0413, 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
3H0121
NSN: 4730-00-245-0413
FSC: 4730
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
end_typeCOMPRESSION RING AND NUT FIRST END
materialPLASTIC CASE
unit_typeBENCH
base_styleSINGLE CONTACT BAYONET CANDELABRA
body_styleW/O MTG HOLE(S)/SLOT(S), TERMINAL(S) ON ONE SURFACE
body_width1.310 INCHES NOMINAL IN
bulb_styleS (STRAIGHT SIDE)
shank_typeSTRAIGHT
shell_typeSOLID
body_height0.750 INCHES NOMINAL IN
body_length0.469 INCHES MAXIMUM IN
design_typeVEINING
NSN4730-00-245-0413
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3H0121 · 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 34
701-6776765 SUBInterchangeable
interchangeable cross-reference
interchangeable
AS15001-2CInterchangeable
interchangeable cross-reference
interchangeable
AS35411Interchangeable
interchangeable cross-reference
interchangeable
10111293Interchangeable
interchangeable cross-reference
interchangeable
5042Interchangeable
interchangeable cross-reference
interchangeable
9411244Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3H0121?
3H0121 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace 3H0121?
There are 34 known substitutes for 3H0121: 701-6776765 SUB, AS15001-2C, AS35411 and 31 more. Substitute compatibility should be verified for your specific system.
Is 3H0121 still available?
3H0121 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