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Technical Data Sheet
PartsTable / MRO / 1-012-1929
1-012-1929 ✓ 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 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 304 OVERALL, nut_style: HEXAGON, nut_height: 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-998-5023, 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→ 1-012-1929
NSN: 5310-00-998-5023
FSC: 5310
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
nut_styleHEXAGON
nut_height0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL NUT
surface_treatmentPASSIVATE OVERALL
width_across_flats0.996 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN
nominal_thread_size0.750 INCHES IN
bearing_surface_typeCHAMFERED
end_item_identificationC-5 AIRCRAFT
NSN5310-00-998-5023
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1-012-1929 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
COUNTERSINK ANGLE: 90.0 DEGREES NOMINAL NUT
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
THREAD QUANTITY PER INCH: 16
•
THREAD SERIES: UNF
•
MATERIAL: STEEL COMP 304 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)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
COUNTERSINK ANGLE90.0 DEGREES NOMINAL NUT
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
NOMINAL THREAD SIZE0.750 INCHES IN
THREAD QUANTITY PER INCH16
THREAD SERIESUNF
MATERIALSTEEL COMP 304 OVERALL
THREAD CLASS3B
END ITEM IDENTIFICATIONC-5 AIRCRAFT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
AN924-8Interchangeable
interchangeable cross-reference
interchangeable
AS5178-08Interchangeable
interchangeable cross-reference
interchangeable
477 691Interchangeable
interchangeable cross-reference
interchangeable
1-012-1929Interchangeable
interchangeable cross-reference
interchangeable
AS5178J08Interchangeable
interchangeable cross-reference
interchangeable
AN924-8JInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1-012-1929?
1-012-1929 is a CAPACITOR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1-012-1929?
There are 11 known substitutes for 1-012-1929: AN924-8, AS5178-08, 477 691 and 8 more. Substitute compatibility should be verified for your specific system.
Is 1-012-1929 still available?
1-012-1929 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