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C043 ✓ Verified by PartsTable
— · NUT WASHER
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

CAPACITOR,VARIABLE,GAS DIELECTRI. Key specifications include color: YELLOW, width: 0.500 INCHES NOMINAL IN, length: 2.000 INCHES NOMINAL IN, material: GAUZE, nut_style: HEXAGON, nut_height: 1.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-151-8898, 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
C043
NSN: 5310-00-151-8898
FSC: 5310
CAGE: 70847 — BAND-IT-IDEX INC UNIT OF IDEX CORP (USA)
SPECIFICATIONS
colorYELLOW
width0.500 INCHES NOMINAL IN
length2.000 INCHES NOMINAL IN
materialGAUZE
nut_styleHEXAGON
nut_height1.000 INCHES NOMINAL IN
thread_class2B
thread_seriesUNS
color_locationOVERALL
special_featuresEACH STRIP INDIVIDUALLY SEALED
thread_directionRIGHT-HAND
width_across_flats0.874 INCHES NOMINAL IN
NSN5310-00-151-8898
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: C043 · 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
•
THREAD CLASS: 2B
•
WIDTH ACROSS FLATS: 0.874 INCHES NOMINAL IN
•
BEARING SURFACE TYPE: CHAMFERED
•
THREAD SERIES: UNS
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
THREAD QUANTITY PER INCH: 10
•
NUT HEIGHT: 1.000 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
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)
THREAD CLASS2B
WIDTH ACROSS FLATS0.874 INCHES NOMINAL IN
BEARING SURFACE TYPECHAMFERED
THREAD SERIESUNS
NOMINAL THREAD SIZE0.500 INCHES IN
THREAD QUANTITY PER INCH10
NUT HEIGHT1.000 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
NUT STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
C040Interchangeable
interchangeable cross-reference
interchangeable
C-041-1101Interchangeable
interchangeable cross-reference
interchangeable
1955Interchangeable
interchangeable cross-reference
interchangeable
SURGICELInterchangeable
interchangeable cross-reference
interchangeable
C04388Interchangeable
Same NIIN cross-reference
interchangeable
9251769Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C043?
C043 is a CAPACITOR,VARIABLE,GAS DIELECTRI.
What parts can replace C043?
There are 6 known substitutes for C043: C040, C-041-1101, 1955 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C043?
C043 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-151-8898. 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