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501357 ✓ 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 material: PLASTIC POLYTETRAFLUOROETHYLENE TUBE, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, body_width: 1.625 INCHES NOMINAL IN, body_height: 2.438 INCHES NOMINAL IN, body_length: 1.750 INCHES NOMINAL IN, flexibility: FLEXIBLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-050-1357, 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
501357
NSN: 4730-00-050-1357
FSC: 4730
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE TUBE
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
body_width1.625 INCHES NOMINAL IN
body_height2.438 INCHES NOMINAL IN
body_length1.750 INCHES NOMINAL IN
flexibilityFLEXIBLE
coil_quantity8
hole_diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
inclosure_typePARTIALLY INCLOSED, DOUBLE SHELL
overall_height2.813 INCHES NOMINAL IN
overall_length330.0 MILLIMETERS MM
hardness_rating52.0 ROCKWELL B MINIMUM OR 64.0 ROCKWELL B MAXIMUM
NSN4730-00-050-1357
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 501357 · 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 15
6568Interchangeable
interchangeable cross-reference
interchangeable
43N1575Interchangeable
interchangeable cross-reference
interchangeable
4730001961464Interchangeable
interchangeable cross-reference
interchangeable
192032Interchangeable
interchangeable cross-reference
interchangeable
105404Interchangeable
interchangeable cross-reference
interchangeable
6V1813Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 501357?
501357 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace 501357?
There are 15 known substitutes for 501357: 6568, 43N1575, 4730001961464 and 12 more. Substitute compatibility should be verified for your specific system.
Is 501357 still available?
501357 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