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PartsTable / COMPONENT / 820590
820590 ✓ 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,CERAMIC DIELE. Key specifications include color: COYOTE BROWN, special_features: PACK SYSTEM BASE; MAN-PACKABLE MOUNTED/DISMOUNTED PACK SYSTEM; COYOTE PATTERN, part_name_assigned_by_controlling_agency: PACK SYSTEM BASE COYOTE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-566-6377, 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
820590
NSN: 4730-01-566-6377
FSC: 4730
CAGE: 3R5K2 — FIRETRACE AEROSPACE LLC (USA)
SPECIFICATIONS
colorCOYOTE BROWN
special_featuresPACK SYSTEM BASE; MAN-PACKABLE MOUNTED/DISMOUNTED PACK SYSTEM; COYOTE PATTERN
part_name_assigned_by_controlling_agencyPACK SYSTEM BASE COYOTE
NSN4730-01-566-6377
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 820590 · 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONMRAP - UNIQUE NSN - MRAP NO PERMANENT WSDC IDENTIFIED
PART NAME ASSIGNED BY CONTROLLING AGENCYFITTING,FSS,1/2"TUBE JIC UNION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
820590Interchangeable
interchangeable cross-reference
interchangeable
94100Interchangeable
interchangeable cross-reference
interchangeable
6515NCM127590Interchangeable
interchangeable cross-reference
interchangeable
3684369C1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 820590?
820590 is a CAPACITOR,VARIABLE,CERAMIC DIELE.
What parts can replace 820590?
There are 4 known substitutes for 820590: 820590, 94100, 6515NCM127590 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 820590?
820590 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-566-6377. 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