PartsTable
Technical Data Sheet
PartsTable / MRO / 45P5
45P5 ✓ 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,PAPER DIELECTRIC. Key specifications include material: CERAMIC CASE, body_style: W/O MTG FACILITIES, AXIAL TERMINALS, flow_angle: 90.0 DEGREES, leg_length: 1.188 INCHES NOMINAL ALL ENDS IN, body_length: 6.625 INCHES NOMINAL IN, body_diameter: 2.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-289-5257, 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→ 45P5
NSN: 4730-00-289-5257
FSC: 4730
CAGE: 98370 — NAVAL DEPARTMENT SPECIFICATIONS PROMULGATED BY DEPARTMENT OF THE NAVY (USA)
SPECIFICATIONS
materialCERAMIC CASE
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
flow_angle90.0 DEGREES
leg_length1.188 INCHES NOMINAL ALL ENDS IN
body_length6.625 INCHES NOMINAL IN
body_diameter2.500 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
features_providedHERMETICALLY SEALED CASE
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.375 INCHES ALL ENDS IN
reliability_indicatorNOT ESTABLISHED
NSN4730-00-289-5257
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 45P5 · 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
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
NOMINAL THREAD SIZE: 0.375 INCHES ALL ENDS IN
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY SURFACE TREATMENT
•
LEG LENGTH: 1.188 INCHES NOMINAL ALL ENDS IN
•
FLOW ANGLE: 90.0 DEGREES
•
MATERIAL: IRON 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)
NONDEFINITIVE SPEC/STD DATA2 TYPE
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS IN
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY SURFACE TREATMENT
LEG LENGTH1.188 INCHES NOMINAL ALL ENDS IN
FLOW ANGLE90.0 DEGREES
MATERIALIRON OVERALL
SURFACE TREATMENTCADMIUM OVERALL
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
664038Interchangeable
Slippers,convalescent Patients'
interchangeable
MIL-S-37080Interchangeable
Slippers,convalescent Patients'
interchangeable
55006Interchangeable
Slippers,convalescent Patients'
interchangeable
11290208-4Interchangeable
interchangeable cross-reference
interchangeable
PBTInterchangeable
interchangeable cross-reference
interchangeable
175GInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 45P5?
45P5 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 45P5?
There are 19 known substitutes for 45P5: 664038, MIL-S-37080, 55006 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 45P5?
45P5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-289-5257. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026