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A3066 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A3066: RING,RETAINING.

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 OR INTERNAL, inside_diameter: 0.188 INCHES NOMINAL IN, major_thickness: 0.031 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-598-0752, 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
A3066
NSN: 5325-00-598-0752
NIINs: 005980752, 010316707
FSC: 5325 — Fastening Devices
CAGE: 17472 — EATON AEROSPACE LLC DBA EATON INOAC DIV FUEL & MOTION CONTROL SYSTEMS DIVISION (USA)
SPECIFICATIONS
materialSTEEL
end_styleVERTEX CENTER OR ABOVE
ring_styleSTRAIGHT GAP
usage_designEXTERNAL OR INTERNAL
inside_diameter0.188 INCHES NOMINAL IN
major_thickness0.031 INCHES NOMINAL IN
outside_diameter0.312 INCHES NOMINAL IN
surface_treatmentCADMIUM
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleROUNDED CORNERS
NSN5325-00-598-0752
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A3066 · 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 OR INTERNAL
•
END STYLE: VERTEX CENTER OR ABOVE
•
CROSS-SECTIONAL SHAPE STYLE: ROUNDED CORNERS
•
OUTSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.031 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: STRAIGHT GAP
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL OR INTERNAL
END STYLEVERTEX CENTER OR ABOVE
CROSS-SECTIONAL SHAPE STYLEROUNDED CORNERS
OUTSIDE DIAMETER0.312 INCHES NOMINAL IN
MAJOR THICKNESS0.031 INCHES NOMINAL IN
INSIDE DIAMETER0.188 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESTRAIGHT GAP
SURFACE TREATMENTCADMIUM
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A3066?
A3066 is a RING,RETAINING.
What is the NSN for A3066?
A3066 is cataloged in the U.S. Government catalog under NSN 5325-00-598-0752. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.