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Technical Data Sheet
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65554 ✓ 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,MICA DIELECTRIC. Key specifications include model_number: FRP, end_item_name: REDUCED PRESSURE BACKFLOW PREVENTER, end_item_identification: KNOLLS POWER LAB, SPECIAL PROJECT MANAGEMENT SYSTEM, part_name_assigned_by_controlling_agency: COMPLETE VALVE KIT FRP I, 3/4-1 INCH IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-011-2304, 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
65554
NSN: 4730-00-011-2304
FSC: 4730
CAGE: 63327 — MCNALLY INDUSTRIES LLC DIV NORTHERN PUMP DIVISION (USA)
SPECIFICATIONS
model_numberFRP
end_item_nameREDUCED PRESSURE BACKFLOW PREVENTER
special_featuresKIT INCLUDES CASE GASKET; SECOND CHECK VALVE ASSEMBLY; CHECK VALVE O-RINGS (2); FIRST CHECK VALVE ASSEMBLY; MOUNTING SCREWS (4); RELIEF VALVE ASSEMBLY; RELIEF VALVE O-RING
end_item_identificationKNOLLS POWER LAB, SPECIAL PROJECT MANAGEMENT SYSTEM
part_name_assigned_by_controlling_agencyCOMPLETE VALVE KIT FRP I, 3/4-1 INCH IN
NSN4730-00-011-2304
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 65554 · 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 27
4730PL0773105Interchangeable
interchangeable cross-reference
interchangeable
2EH663Interchangeable
interchangeable cross-reference
interchangeable
1596848P1REV1Interchangeable
interchangeable cross-reference
interchangeable
13027292-3Interchangeable
interchangeable cross-reference
interchangeable
2673205-3Interchangeable
interchangeable cross-reference
interchangeable
1-093Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 65554?
65554 is a CAPACITOR,FIXED,MICA DIELECTRIC.
What parts can replace 65554?
There are 27 known substitutes for 65554: 4730PL0773105, 2EH663, 1596848P1REV1 and 24 more. Substitute compatibility should be verified for your specific system.
Is 65554 still available?
65554 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