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Technical Data Sheet
PartsTable / COMPONENT / E8.4
E8.4 ✓ 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 E8.4 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-145-7609, 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
E8.4
NSN: 5305-01-145-7609
FSC: 5305
CAGE: 97539 — APM HEXSEAL CORP (USA)
SPECIFICATIONS
Part NumberE8.4
NSN5305-01-145-7609
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: E8.4 · 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 SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
THREAD CLASS: 2A A
•
HEAD HEIGHT: 0.380 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD DIAMETER: 0.620 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 16
•
HEAD STYLE: WATERTIGHT
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD CLASS2A A
HEAD HEIGHT0.380 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD DIAMETER0.620 INCHES NOMINAL IN
THREAD QUANTITY PER INCH16
HEAD STYLEWATERTIGHT
THREAD DIRECTIONRIGHT-HAND
FIRST DIAMETER FROM HEAD0.250 INCHES NOMINAL IN
INTERNAL DRIVE STYLESLOT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
MG-61Interchangeable
interchangeable cross-reference
interchangeable
229-0124-000Interchangeable
interchangeable cross-reference
interchangeable
X1251844-1Interchangeable
interchangeable cross-reference
interchangeable
R743PC22Interchangeable
interchangeable cross-reference
interchangeable
E84Interchangeable
interchangeable cross-reference
interchangeable
R745PC22Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is E8.4?
E8.4 is a E8.4.
What parts can replace E8.4?
There are 11 known substitutes for E8.4: MG-61, 229-0124-000, X1251844-1 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for E8.4?
E8.4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-145-7609. 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