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645034S66 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

645034S66: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302, ring_style: SPIRAL, usage_design: EXTERNAL, inside_diameter: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN, major_thickness: 0.034 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN, strength_rating: ERR-060. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-008-9635, 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
645034S66
NSN: 5325-01-008-9635
FSC: 5325 — Fastening Devices
CAGE: 99551 — GOODRICH CORPORATION DBA GOODRICH CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 302
ring_styleSPIRAL
usage_designEXTERNAL
inside_diameter0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
major_thickness0.034 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
strength_ratingERR-060
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleDOUBLE OVAL
NSN5325-01-008-9635
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 645034S66 · 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
•
STRENGTH RATING: ERR-060
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
MAJOR THICKNESS: 0.034 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: SPIRAL
•
MATERIAL: STEEL COMP 302
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
STRENGTH RATINGERR-060
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
MAJOR THICKNESS0.034 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
INSIDE DIAMETER0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPIRAL
MATERIALSTEEL COMP 302
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 645034S66?
645034S66 is a RING,RETAINING.
What is the NSN for 645034S66?
645034S66 is cataloged in the U.S. Government catalog under NSN 5325-01-008-9635. 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.