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Technical Data Sheet
PartsTable / MRO / A597
A597 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The CAPACITOR,FIXED,ELECTROLYTIC is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include material: STEEL COMP 1022 OVERALL, body_style: TUBE TYPE, body_width: 1.000 INCHES MAXIMUM1.000 INCHES MAXIMUM IN, body_height: 0.750 INCHES MAXIMUM0.750 INCHES MAXIMUM IN, body_length: 3.000 INCHES NOMINAL3.000 INCHES NOMINAL IN, design_type: NONREUSABLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-273-7844, 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→ A597
NSN: 5315-00-273-7844
FSC: 5315
CAGE: 93343 — WHITE FARM EQUIPMENT CO SUB OF TIC INVESTMENT CORP
SPECIFICATIONS
materialSTEEL COMP 1022 OVERALL
body_styleTUBE TYPE
body_width1.000 INCHES MAXIMUM1.000 INCHES MAXIMUM IN
body_height0.750 INCHES MAXIMUM0.750 INCHES MAXIMUM IN
body_length3.000 INCHES NOMINAL3.000 INCHES NOMINAL IN
design_typeNONREUSABLE
shank_length1.500 INCHES NOMINAL IN
thread_class2A A
body_diameter13.843 INCHES NOMINAL IN
thread_length0.625 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALEDHERMETICALLY SEALED
overall_height0.940 INCHES MAXIMUM0.940 INCHES MAXIMUM IN
NSN5315-00-273-7844
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A597 · 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
•
FIRST END STYLE: CHAMFERED
•
STYLE DESIGNATOR: SHOULDER
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
THREAD CLASS: 2A A
•
SHOULDER DIAMETER: 0.750 INCHES NOMINAL IN
•
THREAD LENGTH: 0.625 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1022 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 (FLIS)
FIRST END STYLECHAMFERED
SPECIAL FEATURES1/16 IN. BY 45.0 DEG CHAMFER BETWEEN THREADED AND UNTHREADED PORTION IN
STYLE DESIGNATORSHOULDER
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD CLASS2A A
SHOULDER DIAMETER0.750 INCHES NOMINAL IN
THREAD LENGTH0.625 INCHES NOMINAL IN
MATERIALSTEEL COMP 1022 OVERALL
FIRST END LOCATIONBOTH ENDS
NOMINAL THREAD SIZE0.750 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
9-125-0403Interchangeable
interchangeable cross-reference
interchangeable
472-023Interchangeable
interchangeable cross-reference
interchangeable
125-403Interchangeable
interchangeable cross-reference
interchangeable
994425-9Interchangeable
interchangeable cross-reference
interchangeable
62A0010-500Interchangeable
interchangeable cross-reference
interchangeable
416434-83Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A597?
A597 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace A597?
There are 15 known substitutes for A597: 9-125-0403, 472-023, 125-403 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A597?
A597 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-273-7844. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026