PartsTable
Technical Data Sheet
PartsTable / MRO / 120-145
120-145 ✓ 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

CAPACITOR,FIXED,METALLIZED,PAPER. Key specifications include material: COPPER ALLOY OR COPPER OVERALL, flow_angle: 90.0 DEGREES, leg_length: 0.820 INCHES NOMINAL FIRST END IN, connection_type: THREADED INTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) SECOND END, special_features: WITH ADJUSTABLE STOP AND SPRING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-253-5757, 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→ 120-145
NSN: 4730-00-253-5757
FSC: 4730
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialCOPPER ALLOY OR COPPER OVERALL
flow_angle90.0 DEGREES
leg_length0.820 INCHES NOMINAL FIRST END IN
connection_typeTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) SECOND END
special_featuresWITH ADJUSTABLE STOP AND SPRING
tip_angle_in_deg45.0
operating_pressure175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
nominal_thread_size0.375 INCHES ALL ENDS IN
maximum_operating_temp150.0 FAHRENHEIT SECOND RESPONSE DEGF
end_item_identificationCHARGER, BATTERY 450V BC-120-25-450 TF V
pliers_style_designatorINTERNAL, FLAT JAWS, BENT TIPS
NSN4730-00-253-5757
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 120-145 · 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
•
OPERATING PRESSURE: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,COMP 3, FED SPEC 1ST MATERIAL RESPONSE OR ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MEDIA FOR WHICH DESIGNED: STEAM SECOND RESPONSE
•
SPECIFICATION/STANDARD DATA: 81348-WW-P-460 GOVERNMENT SPECIFICATION
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
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)
OPERATING PRESSURE125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,COMP 3, FED SPEC 1ST MATERIAL RESPONSE OR ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OPERATING PRESSURE175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
MEDIA FOR WHICH DESIGNEDSTEAM SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDAIR THIRD RESPONSE
SPECIFICATION/STANDARD DATA81348-WW-P-460 GOVERNMENT SPECIFICATION
THREAD SERIES DESIGNATORNPT ALL ENDS
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS FIRST RESPONSE
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SECOND RESPONSE DEGF
LEG LENGTH0.820 INCHES NOMINAL FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
116BInterchangeable
interchangeable cross-reference
interchangeable
3-8F1G0115Interchangeable
interchangeable cross-reference
interchangeable
WW-P-460Interchangeable
interchangeable cross-reference
interchangeable
MS51952-3Interchangeable
interchangeable cross-reference
interchangeable
53938-000Interchangeable
interchangeable cross-reference
interchangeable
444042Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 120-145?
120-145 is a CAPACITOR,FIXED,METALLIZED,PAPER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 120-145?
There are 20 known substitutes for 120-145: 116B, 3-8F1G0115, WW-P-460 and 17 more. Substitute compatibility should be verified for your specific system.
Is 120-145 still available?
120-145 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