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Technical Data Sheet
PartsTable / COMPONENT / 5190300
5190300 ✓ 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,VARIABLE,MICA DIELECTR. Key specifications include material: STEEL COMP 4140 OVERALL, body_style: PLAIN, SOLID, bore_style: W/ KEYWAY BOTH ENDS, teeth_type: SPIRAL, pitch_angle: 59.1832 DEGREES, pitch_diameter: 3.5620 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-273-9417, 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
5190300
NSN: 4730-00-273-9417
FSC: 4730
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
body_stylePLAIN, SOLID
bore_styleW/ KEYWAY BOTH ENDS
teeth_typeSPIRAL
pitch_angle59.1832 DEGREES
pitch_diameter3.5620 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity57
hardness_rating34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
tooth_directionRIGHT
style_designatorSIDE FACE, BACK HUB PROTRUDING
surface_treatmentPHOSPHATE TEETH
NSN4730-00-273-9417
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5190300 · 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
•
SCREW THREAD LOCATION: INTERNAL
•
LENGTH TO SHOULDER: 0.375 INCHES NOMINAL IN
•
SMALLEST INSIDE DIAMETER: 0.469 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN
•
MAJOR UNTHREADED OUTSIDE DIAMETER: 0.781 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
•
THREAD LENGTH: 0.313 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 72, 1/2H ASSN STD SINGLE MATERIAL RESPONSE
•
STYLE DESIGNATOR: KNURLED, INTERNAL THREAD, SHOULDERED
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)
SCREW THREAD LOCATIONINTERNAL
LENGTH TO SHOULDER0.375 INCHES NOMINAL IN
SMALLEST INSIDE DIAMETER0.469 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN
MAJOR UNTHREADED OUTSIDE DIAMETER0.781 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
THREAD LENGTH0.313 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 72, 1/2H ASSN STD SINGLE MATERIAL RESPONSE
STYLE DESIGNATORKNURLED, INTERNAL THREAD, SHOULDERED
THREAD CLASS3B
SCREW THREAD SERIES DESIGNATORUNEF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
484BAFInterchangeable
interchangeable cross-reference
interchangeable
1577NInterchangeable
interchangeable cross-reference
interchangeable
BP882LCPInterchangeable
interchangeable cross-reference
interchangeable
5190300Interchangeable
interchangeable cross-reference
interchangeable
152Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5190300?
5190300 is a CAPACITOR,VARIABLE,MICA DIELECTR.
What parts can replace 5190300?
There are 5 known substitutes for 5190300: 484BAF, 1577N, BP882LCP and 2 more. Substitute compatibility should be verified for your specific system.
Is 5190300 still available?
5190300 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