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F4447-003766 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

F4447-003766: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include usage_design: EXTERNAL, outside_diameter: 17.680 INCHES MINIMUM AND 17.690 INCHES MAXIMUM IN, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-306-3851, 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
F4447-003766
NSN: 5325-00-306-3851
FSC: 5325 — Fastening Devices
CAGE: A196N — FORSVARETS MATERIELVERK (SWE)
SPECIFICATIONS
usage_designEXTERNAL
outside_diameter17.680 INCHES MINIMUM AND 17.690 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
NSN5325-00-306-3851
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: F4447-003766 · 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
•
OUTSIDE DIAMETER: 17.680 INCHES MINIMUM AND 17.690 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
OUTSIDE DIAMETER17.680 INCHES MINIMUM AND 17.690 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
SUBSTITUTES & CROSS-REFERENCES 2
348946Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5325PL0831531Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is F4447-003766?
F4447-003766 is a RING,RETAINING.
What parts can replace F4447-003766?
There are 2 known substitutes for F4447-003766: 348946, 5325PL0831531. Substitute compatibility should be verified for your specific system.
What is the NSN for F4447-003766?
F4447-003766 is cataloged in the U.S. Government catalog under NSN 5325-00-306-3851. 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.