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Technical Data Sheet
PartsTable / COMPONENT / 3000X185ST
3000X185ST ✓ 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, ring_style: INTERNAL, usage_design: INTERNAL, major_thickness: 0.062 INCHES NOMINAL IN, outside_diameter: 1.998 INCHES NOMINAL IN, casehardening_indicator: NOT CASEHARDENED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-809-3389, 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
3000X185ST
NSN: 5325-00-809-3389
FSC: 5325
CAGE: 97464 — TRUARC CO LLC (USA)
SPECIFICATIONS
materialSTEEL
ring_styleINTERNAL
usage_designINTERNAL
major_thickness0.062 INCHES NOMINAL IN
outside_diameter1.998 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationFED-STD 66,NO. 1066 THRU 1090 FED STD SINGLE MATERIAL RESPONSE
NSN5325-00-809-3389
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3000X185ST · 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
•
MATERIAL HARDNESS RATING: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
•
MATERIAL: STEEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED-STD 66,NO. 1066 THRU 1090 FED STD SINGLE MATERIAL RESPONSE
•
USAGE DESIGN: INTERNAL
•
OUTSIDE DIAMETER: 1.998 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: INTERNAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL HARDNESS RATING47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
MATERIALSTEEL
MATERIAL DOCUMENT AND CLASSIFICATIONFED-STD 66,NO. 1066 THRU 1090 FED STD SINGLE MATERIAL RESPONSE
USAGE DESIGNINTERNAL
OUTSIDE DIAMETER1.998 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEINTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
251539Interchangeable
interchangeable cross-reference
interchangeable
L6497-52Interchangeable
interchangeable cross-reference
interchangeable
W100711-4HTCAInterchangeable
interchangeable cross-reference
interchangeable
2603903-40Interchangeable
interchangeable cross-reference
interchangeable
2603903-14Interchangeable
interchangeable cross-reference
interchangeable
2603903-20Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3000X185ST?
3000X185ST is a RING,RETAINING.
What parts can replace 3000X185ST?
There are 23 known substitutes for 3000X185ST: 251539, L6497-52, W100711-4HTCA and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3000X185ST?
3000X185ST is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-809-3389. 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