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55580 — CAPACITOR,VARIABLE,AIR DIELECTRI

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

55580: CAPACITOR,VARIABLE,AIR DIELECTRI.

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include material: STEEL CASE, nut_style: HEXAGON, body_style: PLATE-MESHING, body_width: 1.384 INCHES MAXIMUM IN, case_style: SQUARE, nut_height: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-220-6671, 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→ 55580
NSN: 5310-00-220-6671
NIINs: 002206671, 002500770, 002513184, 004653738, 006487911, 008109983, 010382313, 015413099
FSC: 5310 — Nuts and Washers
CAGE: 04627 — HYSTER-YALE GROUP, INC. DIV HYSTER-YALE MATERIALS HANDLING (USA)
SPECIFICATIONS
materialSTEEL CASE
nut_styleHEXAGON
body_stylePLATE-MESHING
body_width1.384 INCHES MAXIMUM IN
case_styleSQUARE
nut_height0.250 INCHES NOMINAL IN
seal_width0.500 INCHES NOMINAL IN
shaft_typeROUND SINGLE SHAFT
design_typeREUSABLE
shaft_length0.636 INCHES NOMINAL SINGLE SHAFT IN
drop_pressureERR-060
hole_diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
NSN5310-00-220-6671
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 55580 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.937 INCHES NOMINAL IN
•
THREAD SERIES: UNS
•
THREAD PITCH DIAMETERS: +0.6365 TO 0.6406 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.669 INCHES IN
•
NUT HEIGHT: 0.250 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC 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
WIDTH ACROSS FLATS0.937 INCHES NOMINAL IN
THREAD SERIESUNS
THREAD PITCH DIAMETERS+0.6365 TO 0.6406 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.669 INCHES IN
NUT HEIGHT0.250 INCHES NOMINAL IN
SURFACE TREATMENTZINC OVERALL
NUT STYLEHEXAGON
THREAD QUANTITY PER INCH20
SUBSTITUTES & CROSS-REFERENCES 5
806915Reference document
Same NSN cross-reference
Reference document — Secondary reference
1871399Reference document
Same NSN cross-reference
Reference document — Secondary reference
PI2567Reference document
Same NSN cross-reference
Reference document — Secondary reference
139682HReference document
Same NSN cross-reference
Reference document — Secondary reference
850311Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 55580?
55580 is a CAPACITOR,VARIABLE,AIR DIELECTRI. It is classified as a MRO (MRO_GENERAL).
What parts can replace 55580?
There are 5 known substitutes for 55580: 806915, 1871399, PI2567 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 55580?
55580 is cataloged in the U.S. Government catalog under NSN 5310-00-220-6671. 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.