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Technical Data Sheet
PartsTable / MRO / 283-027
283-027 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CAPACITOR,FIXED,CERAMIC DIELECTR. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, body_style: W/O MTG FACILITIES, RADIAL TERMINALS, body_length: 0.250 INCHES NOMINAL IN, temp_rating: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF, body_diameter: 0.625 INCHES NOMINAL IN, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-166-8411, 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→ 283-027
NSN: 5331-00-166-8411
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
body_styleW/O MTG FACILITIES, RADIAL TERMINALS
body_length0.250 INCHES NOMINAL IN
temp_rating-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
body_diameter0.625 INCHES NOMINAL IN
hardness_rating75.0 SHORE DUROMETER A NOMINAL
terminal_length1.250 INCHES MINIMUM IN
outside_diameter1.617 INCHES MINIMUM AND 1.657 INCHES MAXIMUM IN
terminal_diameter0.032 INCHES NOMINAL IN
center_hole_diameter1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
reliability_indicatorNOT ESTABLISHED
NSN5331-00-166-8411
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 283-027 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
TEMP RATING: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
OUTSIDE DIAMETER: 1.617 INCHES MINIMUM AND 1.657 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
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)
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
ELONGATION PERCENTAGE125 MAXIMUM
MATERIALRUBBER FLUOROCARBON CLASS FPM
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
TEMP RATING-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
OUTSIDE DIAMETER1.617 INCHES MINIMUM AND 1.657 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
19-660-389-00PC029Interchangeable
interchangeable cross-reference
interchangeable
AS568-220Interchangeable
interchangeable cross-reference
interchangeable
500311Interchangeable
interchangeable cross-reference
interchangeable
JANR11Interchangeable
interchangeable cross-reference
interchangeable
6502-3137220PCSYMB0LR124Interchangeable
interchangeable cross-reference
interchangeable
AS568-220CPInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 283-027?
283-027 is a CAPACITOR,FIXED,CERAMIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 283-027?
There are 29 known substitutes for 283-027: 19-660-389-00PC029, AS568-220, 500311 and 26 more. Substitute compatibility should be verified for your specific system.
Is 283-027 still available?
283-027 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