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Technical Data Sheet
PartsTable / COMPONENT / 04378AB
04378AB ✓ 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 RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, end_style: VERTEX CENTER OR ABOVE, ring_style: STRAIGHT GAP, usage_design: EXTERNAL, inside_diameter: 0.347 INCHES NOMINAL IN, major_thickness: 0.046 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-282-0761, 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
04378AB
NSN: 5325-00-282-0761
FSC: 5325
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialSTEEL
end_styleVERTEX CENTER OR ABOVE
ring_styleSTRAIGHT GAP
usage_designEXTERNAL
inside_diameter0.347 INCHES NOMINAL IN
major_thickness0.046 INCHES NOMINAL IN
outside_diameter0.439 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating46.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
cross-sectional_shape_styleRECTANGULAR
NSN5325-00-282-0761
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 04378AB · 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
•
USAGE DESIGN: EXTERNAL
•
MAJOR THICKNESS: 0.046 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
RING STYLE: STRAIGHT GAP
•
OUTSIDE DIAMETER: 0.439 INCHES NOMINAL IN
•
END STYLE: VERTEX CENTER OR ABOVE
•
MATERIAL HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
USAGE DESIGNEXTERNAL
MAJOR THICKNESS0.046 INCHES NOMINAL IN
MATERIALSTEEL
RING STYLESTRAIGHT GAP
OUTSIDE DIAMETER0.439 INCHES NOMINAL IN
END STYLEVERTEX CENTER OR ABOVE
MATERIAL HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
INSIDE DIAMETER0.347 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
2430-035Interchangeable
interchangeable cross-reference
interchangeable
24335Interchangeable
interchangeable cross-reference
interchangeable
5033706-04Interchangeable
interchangeable cross-reference
interchangeable
MS49005-1Interchangeable
interchangeable cross-reference
interchangeable
WW-P-471Interchangeable
interchangeable cross-reference
interchangeable
ZZR001415Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 04378AB?
04378AB is a RING,RETAINING.
What parts can replace 04378AB?
There are 10 known substitutes for 04378AB: 2430-035, 24335, 5033706-04 and 7 more. Substitute compatibility should be verified for your specific system.
Is 04378AB still available?
04378AB is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026