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121-045 — CAPACITOR,FIXED,CERAMIC DIELECTR

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

121-045: CAPACITOR,FIXED,CERAMIC DIELECTR.

CAPACITOR,FIXED,CERAMIC DIELECTR. Key specifications include height: 1.000 INCHES NOMINAL IN, diameter: 0.312 INCHES NOMINAL IN, material: STEEL OVERALL, head_style: THUMB NO. 4, head_width: 0.1345 INCHES NOMINAL IN, special_features: USED ON UNITS BUILT BEFORE 12/16/2006.

This part is cataloged in the U.S. Government catalog under NSN 5315-00-325-5220, 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→ 121-045
NSN: 5315-00-325-5220
NIINs: 003255220, 006003927, 010160074, 015940814
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 50870 — ARNOLD A SEMLER INC (USA)
SPECIFICATIONS
height1.000 INCHES NOMINAL IN
diameter0.312 INCHES NOMINAL IN
materialSTEEL OVERALL
head_styleTHUMB NO. 4
head_width0.1345 INCHES NOMINAL IN
special_featuresUSED ON UNITS BUILT BEFORE 12/16/2006
style_designatorSTRAIGHT
surface_treatmentZINC OVERALL
under_head_length1.000 INCHES NOMINAL IN
first_hole_diameter0.110 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
hole_arrangement_styleONE END DRILLED
NSN5315-00-325-5220
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 121-045 · 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
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
HEAD WIDTH: 0.1345 INCHES NOMINAL IN
•
UNDER HEAD LENGTH: 1.000 INCHES NOMINAL IN
•
FIRST HOLE DIAMETER: 0.110 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT
•
DIAMETER: 0.312 INCHES NOMINAL IN
•
HEAD STYLE: THUMB NO. 4
•
HEIGHT: 1.000 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
HOLE ARRANGEMENT STYLEONE END DRILLED
HEAD WIDTH0.1345 INCHES NOMINAL IN
UNDER HEAD LENGTH1.000 INCHES NOMINAL IN
FIRST HOLE DIAMETER0.110 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT
DIAMETER0.312 INCHES NOMINAL IN
HEAD STYLETHUMB NO. 4
HEIGHT1.000 INCHES NOMINAL IN
SPECIAL FEATURESHEAD HAS A 0.468 IN. DIA HOLE IN
SURFACE TREATMENTZINC 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 121-045?
121-045 is a CAPACITOR,FIXED,CERAMIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 121-045?
121-045 is cataloged in the U.S. Government catalog under NSN 5315-00-325-5220. 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.