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181618 — CAPACITOR,FIXED,PLASTIC DIELECTR

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

181618: CAPACITOR,FIXED,PLASTIC DIELECTR.

CAPACITOR,FIXED,PLASTIC DIELECTR. Key specifications include material: PLASTIC CASE, body_style: W/O MTG FACILITIES, AXIAL TERMINALS, head_style: HEXAGON, body_length: 0.504 INCHES NOMINAL IN, head_height: 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN, thread_class: 2A A. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-225-9094, 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→ 181618
NSN: 5306-00-225-9094
NIINs: 002259094, 004610894, 009149958
FSC: 5306 — Bolts
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
head_styleHEXAGON
body_length0.504 INCHES NOMINAL IN
head_height0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
thread_class2A A
body_diameter0.149 INCHES NOMINAL IN
hole_diameter0.188 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width1.062 INCHES NOMINAL IN
thread_length0.875 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN
overall_length3.000 INCHES NOMINAL IN
fastener_length1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
NSN5306-00-225-9094
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 181618 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
THREAD LENGTH: 0.875 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN
•
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
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
HEAD HEIGHT0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
FASTENER LENGTH1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
THREAD LENGTH0.875 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
SUBSTITUTES & CROSS-REFERENCES 8
5306002259094Reference document
Same NSN cross-reference
Reference document — Informative reference only
263N845Reference document
Same NSN cross-reference
Reference document — Secondary reference
10004-14Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS90726-39Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS35298-039Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS35298-39Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 181618?
181618 is a CAPACITOR,FIXED,PLASTIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 181618?
There are 8 known substitutes for 181618: 5306002259094, 263N845, 10004-14 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 181618?
181618 is cataloged in the U.S. Government catalog under NSN 5306-00-225-9094. 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.