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Technical Data Sheet
1091-172 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

CAPACITOR,FIXED,MICA DIELECTRIC. Key specifications include body_style: STRAIGHT SHAPE, EXTERNAL/INTERNAL COUPLING, shell_type: SOLID, thread_class: 2B, overall_length: 1.312 INCHES NOMINAL IN, shell_material: COPPER ALLOY, insert_material: PLASTIC TETRAFLUOROETHYLENE ALL MATING ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5935-00-821-6126, 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
1091-172
NSN: 5935-00-821-6126
FSC: 5935
CAGE: 03554 — AMPHENOL CANADA CORP (CAN)
SPECIFICATIONS
body_styleSTRAIGHT SHAPE, EXTERNAL/INTERNAL COUPLING
shell_typeSOLID
thread_class2B
overall_length1.312 INCHES NOMINAL IN
shell_materialCOPPER ALLOY
insert_materialPLASTIC TETRAFLUOROETHYLENE ALL MATING ENDS
contact_materialCOPPER ALLOY ALL MATING ENDS ALL CONTACT GROUPINGS
overall_diameter0.812 INCHES NOMINAL IN
thread_directionRIGHT-HAND
precious_materialSILVER
mating_end_quantity2
nominal_thread_size0.625 INCHES IN
NSN5935-00-821-6126
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN 1091-172 MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
THREADED DEVICE TYPE: COUPLING FACILITY
BODY STYLE: STRAIGHT SHAPE, EXTERNAL/INTERNAL COUPLING
THREAD CLASS: 2B
SHELL TYPE: SOLID
CONTACT REMOVABILITY: NONREMOVABLE ALL MATING ENDS ALL CONTACT GROUPINGS
INCLUDED CONTACT TYPE: COAXIAL PIN FIRST MATING END ALL CONTACT GROUPINGS
INCLUDED CONTACT QUANTITY: 1 SECOND MATING END ALL CONTACT GROUPINGS
SHELL SURFACE TREATMENT: SILVER
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)
THREADED DEVICE TYPECOUPLING FACILITY
BODY STYLESTRAIGHT SHAPE, EXTERNAL/INTERNAL COUPLING
THREAD CLASS2B
SHELL TYPESOLID
CONTACT REMOVABILITYNONREMOVABLE ALL MATING ENDS ALL CONTACT GROUPINGS
INCLUDED CONTACT TYPECOAXIAL PIN FIRST MATING END ALL CONTACT GROUPINGS
INCLUDED CONTACT QUANTITY1 SECOND MATING END ALL CONTACT GROUPINGS
SHELL SURFACE TREATMENTSILVER
INSERT MATERIALPLASTIC TETRAFLUOROETHYLENE ALL MATING ENDS
CONTACT MATERIALCOPPER ALLOY ALL MATING ENDS ALL CONTACT GROUPINGS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
AWSA5.4-78 E312-16 0.188 10LBInterchangeable
interchangeable cross-reference
interchangeable
ARCAL0Y312-16Interchangeable
interchangeable cross-reference
interchangeable
AWS A5.4Interchangeable
interchangeable cross-reference
interchangeable
ARCALOY 312 AC-DC 0.125Interchangeable
interchangeable cross-reference
interchangeable
MIL-E-22200/2Interchangeable
interchangeable cross-reference
interchangeable
1195Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1091-172?
1091-172 is a CAPACITOR,FIXED,MICA DIELECTRIC.
What parts can replace 1091-172?
There are 16 known substitutes for 1091-172: AWSA5.4-78 E312-16 0.188 10LB, ARCAL0Y312-16, AWS A5.4 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1091-172?
1091-172 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5935-00-821-6126. This indicates validated use in U.S. government and defense supply chains.
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