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MT129 — CAPACITOR,FIXED,ELECTROLYTIC

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

MT129: CAPACITOR,FIXED,ELECTROLYTIC.

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 width: 0.062 INCHES NOMINAL IN, length: 0.069 INCHES NOMINAL IN, material: STEEL SPRING, nut_style: SLOTTED, HEXAGON, anode_type: ETCHED FOIL, body_style: W/O MTG FACILITIES, AXIAL TERMINALS. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-741-4684, 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→ MT129
NSN: 5310-00-741-4684
NIINs: 007414684, 008912500, 013952762
FSC: 5310 — Nuts and Washers
CAGE: 26051 — GREAT AMERICAN INDUSTRIES INC (USA)
SPECIFICATIONS
width0.062 INCHES NOMINAL IN
length0.069 INCHES NOMINAL IN
materialSTEEL SPRING
nut_styleSLOTTED, HEXAGON
anode_typeETCHED FOIL
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
nut_height1.500 INCHES NOMINAL IN
body_length1.313 INCHES NOMINAL IN
thread_class3B
body_diameter0.625 INCHES NOMINAL IN
thread_seriesUN
overall_height0.041 INCHES NOMINAL IN
NSN5310-00-741-4684
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MT129 · 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
•
WIDTH ACROSS FLATS: 1.500 INCHES NOMINAL IN
•
THREAD SERIES: UN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A108 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A108 ASSN STD 4TH MATERIAL RESPONSE OR ASTM A108 ASSN STD 5TH MATERIAL RESPONSE OR ASTM A108 ASSN STD 6TH MATERIAL RESPONSE OR ASTM A108 ASSN STD 7TH MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.125 INCHES IN
•
NUT HEIGHT: 1.500 INCHES NOMINAL IN
•
NUT STYLE: SLOTTED, HEXAGON
•
THREAD CLASS: 3B
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
WIDTH ACROSS FLATS1.500 INCHES NOMINAL IN
THREAD SERIESUN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A108 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A108 ASSN STD 4TH MATERIAL RESPONSE OR ASTM A108 ASSN STD 5TH MATERIAL RESPONSE OR ASTM A108 ASSN STD 6TH MATERIAL RESPONSE OR ASTM A108 ASSN STD 7TH MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.125 INCHES IN
NUT HEIGHT1.500 INCHES NOMINAL IN
NUT STYLESLOTTED, HEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH16
MATERIALSTEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1022 OR STEEL COMP 1025 OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MT129?
MT129 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What is the NSN for MT129?
MT129 is cataloged in the U.S. Government catalog under NSN 5310-00-741-4684. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.