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AT56657 — CAPACITOR,FIXED,PLASTIC DIELECTR

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AT56657: CAPACITOR,FIXED,PLASTIC DIELECTR.

CAPACITOR,FIXED,PLASTIC DIELECTR. This part is cataloged in the U.S. Government catalog under NSN 4730-01-326-1438, 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
AT56657
NSN: 4730-01-326-1438
NIINs: 013261438, 014763663
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 3PSD7 — JOHN DEERE SHARED SERVICES, LLC (USA)
SPECIFICATIONS
end_item_identificationCONTRACTOR LOGISTICS LIFETIME SUPPORT (CRLS), HYDRAULIC EXCAVATOR TYPE 3 (HYEX) (MODEL 330 LCR HX3), NSN 3805-01-463-0805, TM5-3805-281-24P
NSN4730-01-326-1438
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AT56657 · 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
SUBSTITUTES & CROSS-REFERENCES 1
114Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AT56657?
AT56657 is a CAPACITOR,FIXED,PLASTIC DIELECTR.
What parts can replace AT56657?
There is 1 known substitute for AT56657: 114. Substitute compatibility should be verified for your specific system.
What is the NSN for AT56657?
AT56657 is cataloged in the U.S. Government catalog under NSN 4730-01-326-1438. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.