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Technical Data Sheet
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17491 — Technical Data Sheet

✓ 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,PAPER DIELECTRIC. Key specifications include material: PLASTIC HOUSING, hub_location: CENTER, special_features: AGCU INSURANCE KIT CONTAINS SUPPORTING REPAIR HARDWARE, attachment_method: BOLT HOLE, cross-sectional_height: 0.092 INCHES NOMINAL IN, mounting_hole_diameter: 0.209 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-298-6237, 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→ 17491
NSN: 5331-00-298-6237
FSC: 5331 — O-RING
CAGE: 80006 — LITTON SYSTEMS INC AIRTRON DIV (USA)
SPECIFICATIONS
materialPLASTIC HOUSING
hub_locationCENTER
blade_quantity5
special_featuresAGCU INSURANCE KIT CONTAINS SUPPORTING REPAIR HARDWARE
attachment_methodBOLT HOLE
cross-sectional_height0.092 INCHES NOMINAL IN
mounting_hole_diameter0.209 INCHES NOMINAL IN
mounting_hole_quantity2
end_item_identificationF/A-22 RAPTOR
rotation_direction_for_which_designedCLOCKWISE
part_name_assigned_by_controlling_agency(INAVY) LAMP, SE, STD 30", 254MM MM
NSN5331-00-298-6237
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 17491 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
•
MATERIAL: RUBBER
•
CROSS-SECTIONAL HEIGHT: 0.092 INCHES NOMINAL 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)
MATERIALRUBBER
SPECIAL FEATURESACTION ID 45485745
CROSS-SECTIONAL HEIGHT0.092 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
L-57802Interchangeable
interchangeable cross-reference
interchangeable
17490Interchangeable
interchangeable cross-reference
interchangeable
7-074000124Interchangeable
interchangeable cross-reference
interchangeable
40845-1Interchangeable
interchangeable cross-reference
interchangeable
40845-1 ITEM NO 18Interchangeable
interchangeable cross-reference
interchangeable
1743-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 17491?
17491 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 17491?
There are 9 known substitutes for 17491: L-57802, 17490, 7-074000124 and 6 more. Substitute compatibility should be verified for your specific system.
Is 17491 still available?
17491 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: September 2026