PartsTable
Technical Data Sheet
PartsTable / COMPONENT / C305
C305 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The CAP,IGNITION DISTRIBUTION is a the manufacturer industrial component. Key specifications include color: BLACK, cover: NOT PROVIDED, shape: STRAIGHT, wheel: NOT PROVIDED, length: 5.562 INCHES NOMINAL IN, diameter: 0.281 INCHES NOMINAL MOUNTING HOLE 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 5306-00-054-4954, 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
C305
NSN: 5306-00-054-4954
FSC: 5306
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
colorBLACK
coverNOT PROVIDED
shapeSTRAIGHT
wheelNOT PROVIDED
length5.562 INCHES NOMINAL IN
diameter0.281 INCHES NOMINAL MOUNTING HOLE IN
materialSTEEL SHELL
unit_typeNONREFILLABLE
body_styleTUBULAR, PLAIN
head_styleDOUBLE HEXAGON W/HOLE
scale_typeWEIGHING
seat_angle45.0 DEGREES
NSN5306-00-054-4954
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: C305 · 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
•
THREAD LENGTH: 0.611 INCHES MINIMUM IN
•
THREAD QUANTITY PER INCH: 24
•
GRIP LENGTH: 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN
•
HEAD STYLE: DOUBLE HEXAGON W/HOLE
•
MATERIAL: STEEL OVERALL
•
FASTENER LENGTH: 2.236 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
•
MINIMUM TENSILE STRENGTH: 260000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.611 INCHES MINIMUM IN
THREAD QUANTITY PER INCH24
GRIP LENGTH1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN
HEAD STYLEDOUBLE HEXAGON W/HOLE
MATERIALSTEEL OVERALL
FASTENER LENGTH2.236 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH260000 POUNDS PER SQUARE INCH LBS
THREAD CLASS3A A
WIDTH BETWEEN FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
B305-18Interchangeable
interchangeable cross-reference
interchangeable
C305Interchangeable
interchangeable cross-reference
interchangeable
LF-591Interchangeable
interchangeable cross-reference
interchangeable
T-192-PInterchangeable
interchangeable cross-reference
interchangeable
K729Interchangeable
interchangeable cross-reference
interchangeable
343103Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy C305?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is C305?
C305 is a CAP,IGNITION DISTRIBUTION.
What parts can replace C305?
There are 20 known substitutes for C305: B305-18, C305, LF-591 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C305?
C305 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-054-4954. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — C305

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026