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Technical Data Sheet
PartsTable / COMPONENT / 161256
161256 ✓ 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 height: 0.188 INCHES NOMINAL IN, material: STEEL OVERALL, shank_length: 0.141 INCHES NOMINAL IN, shank_diameter: 0.123 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN, special_features: FLUSH TYPE FITTING W/SMOOTH S HANK,AND THROAT LOCATED BALL CHEC K VALVE, style_designator: UNTHREADED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-277-4780, 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
161256
NSN: 4730-00-277-4780
FSC: 4730
CAGE: 22852 — SPALLA INC (USA)
SPECIFICATIONS
height0.188 INCHES NOMINAL IN
materialSTEEL OVERALL
shank_length0.141 INCHES NOMINAL IN
shank_diameter0.123 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
special_featuresFLUSH TYPE FITTING W/SMOOTH S HANK,AND THROAT LOCATED BALL CHEC K VALVE
style_designatorUNTHREADED
surface_treatmentZINC OVERALL
NSN4730-00-277-4780
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 161256 · 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
•
HEIGHT: 0.188 INCHES NOMINAL IN
•
STYLE DESIGNATOR: UNTHREADED
•
MATERIAL: STEEL OVERALL
•
SHANK DIAMETER: 0.123 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
•
SHANK LENGTH: 0.141 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC OVERALL
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)
HEIGHT0.188 INCHES NOMINAL IN
SPECIAL FEATURESFLUSH TYPE FITTING W/SMOOTH S HANK,AND THROAT LOCATED BALL CHEC K VALVE
STYLE DESIGNATORUNTHREADED
MATERIALSTEEL OVERALL
SHANK DIAMETER0.123 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
SHANK LENGTH0.141 INCHES NOMINAL IN
SURFACE TREATMENTZINC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
4971Interchangeable
interchangeable cross-reference
interchangeable
D15-716HPC376Interchangeable
interchangeable cross-reference
interchangeable
116207Interchangeable
interchangeable cross-reference
interchangeable
113818Interchangeable
interchangeable cross-reference
interchangeable
1877Interchangeable
interchangeable cross-reference
interchangeable
B-3524-024Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 161256?
161256 is a CAPACITOR,FIXED,ELECTROLYTIC.
What parts can replace 161256?
There are 17 known substitutes for 161256: 4971, D15-716HPC376, 116207 and 14 more. Substitute compatibility should be verified for your specific system.
Is 161256 still available?
161256 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