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PartsTable / COMPONENT / R-6181 AT PIECE 46
R-6181 AT PIECE 46 ✓ 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 5325-01-246-9469, 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
R-6181 AT PIECE 46
NSN: 5325-01-246-9469
FSC: 5325
CAGE: 16497 — DRESSER, INC. DBA DRESSER EQUIPMENT GROUP DIV INDUSTRIAL VALVE OPERATIONS, DRESSE (USA)
SPECIFICATIONS
Part NumberR-6181 AT PIECE 46
NSN5325-01-246-9469
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: R-6181 AT PIECE 46 · 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 9
1529-6Interchangeable
interchangeable cross-reference
interchangeable
MIL-H-24135/5Interchangeable
interchangeable cross-reference
interchangeable
4179-6Interchangeable
interchangeable cross-reference
interchangeable
FC163-10Interchangeable
interchangeable cross-reference
interchangeable
FC163-1509-10Interchangeable
interchangeable cross-reference
interchangeable
KT-3070-3 ITEMInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R-6181 AT PIECE 46?
R-6181 AT PIECE 46 is a RING,RETAINING.
What parts can replace R-6181 AT PIECE 46?
There are 9 known substitutes for R-6181 AT PIECE 46: 1529-6, MIL-H-24135/5, 4179-6 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R-6181 AT PIECE 46?
R-6181 AT PIECE 46 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-246-9469. 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