PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 53-11278
53-11278 ✓ 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. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-354-7919, 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
53-11278
NSN: 5325-01-354-7919
FSC: 5325
CAGE: 88907 — BRUNSWICK CORP DBA MERCURY MARINE DIV MERCURY MARINE (USA)
SPECIFICATIONS
Part Number53-11278
NSN5325-01-354-7919
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 53-11278 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
G3102-3Interchangeable
interchangeable cross-reference
interchangeable
3083-4Interchangeable
interchangeable cross-reference
interchangeable
165Interchangeable
interchangeable cross-reference
interchangeable
1127-8Interchangeable
interchangeable cross-reference
interchangeable
1Interchangeable
R970
interchangeable
11278-00Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 53-11278?
53-11278 is a RING,RETAINING.
What parts can replace 53-11278?
There are 12 known substitutes for 53-11278: G3102-3, 3083-4, 165 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 53-11278?
53-11278 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-354-7919. 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