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Technical Data Sheet
PartsTable / COMPONENT / 169C-4-4
169C-4-4 ✓ 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: COPPER ALLOY OVERALL, leg_length: 0.938 INCHES NOMINAL SECOND END IN, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: COMPRESSION (TUBE) FIRST END, nominal_thread_size: 0.250 INCHES SECOND END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-3825, 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
169C-4-4
NSN: 4730-00-278-3825
FSC: 4730
CAGE: 93061 — PARKER-HANNIFIN CORP DIV FLUID SYSTEM CONNECTOR DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
leg_length0.938 INCHES NOMINAL SECOND END IN
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_styleCOMPRESSION (TUBE) FIRST END
nominal_thread_size0.250 INCHES SECOND END IN
seat_nominal_radius0.063 INCHES FIRST END IN
thread_quantity_per_inch24 FIRST END
thread_series_designatorNPTF SECOND END
furnished_items_and_quantity1 TUBE COUPLING NUT W/SLEEVE AND 1 COUPLING SLEEVE
nominal_pipe_size_accommodated0.250 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.250 INCHES FIRST END IN
NSN4730-00-278-3825
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 169C-4-4 · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
THREAD QUANTITY PER INCH: 24 FIRST END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
•
FURNISHED ITEMS AND QUANTITY: 1 TUBE COUPLING NUT W/SLEEVE AND 1 COUPLING SLEEVE
•
LEG LENGTH: 0.719 INCHES NOMINAL FIRST END IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END IN
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)
MATERIALCOPPER ALLOY OVERALL
THREAD QUANTITY PER INCH24 FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
FURNISHED ITEMS AND QUANTITY1 TUBE COUPLING NUT W/SLEEVE AND 1 COUPLING SLEEVE
LEG LENGTH0.719 INCHES NOMINAL FIRST END IN
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
LEG LENGTH0.938 INCHES NOMINAL SECOND END IN
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
CONNECTION STYLEPLAIN (PIPE) SECOND END
THREAD SERIES DESIGNATORUNS FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
B892Interchangeable
interchangeable cross-reference
interchangeable
69FInterchangeable
interchangeable cross-reference
interchangeable
SAE-J512Interchangeable
interchangeable cross-reference
interchangeable
J512 4 2 060202BAInterchangeable
interchangeable cross-reference
interchangeable
HA791Interchangeable
interchangeable cross-reference
interchangeable
169F5-8X1-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 169C-4-4?
169C-4-4 is a CAPACITOR,FIXED,ELECTROLYTIC.
What parts can replace 169C-4-4?
There are 13 known substitutes for 169C-4-4: B892, 69F, SAE-J512 and 10 more. Substitute compatibility should be verified for your specific system.
Is 169C-4-4 still available?
169C-4-4 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