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1664329 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1664329: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, end_style: VERTEX BELOW CENTER, ring_style: STRAIGHT GAP, usage_design: INTERNAL, inside_diameter: 1.639 INCHES MINIMUM AND 1.649 INCHES MAXIMUM IN, outside_diameter: 1.732 INCHES MINIMUM AND 1.742 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-653-5780, 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
1664329
NSN: 5325-00-653-5780
NIINs: 006535780, 012961980
FSC: 5325 — Fastening Devices
CAGE: 76760 — NEW VENTURE GEAR INC NEW PROCESS GEAR DIV (USA)
SPECIFICATIONS
materialSTEEL
end_styleVERTEX BELOW CENTER
ring_styleSTRAIGHT GAP
usage_designINTERNAL
inside_diameter1.639 INCHES MINIMUM AND 1.649 INCHES MAXIMUM IN
outside_diameter1.732 INCHES MINIMUM AND 1.742 INCHES MAXIMUM IN
material_diameter0.093 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleROUND
material_document_and_classificationQQ-W-474A, COMPOSITION A OR B FED SPEC SINGLE MATERIAL RESPONSE A
NSN5325-00-653-5780
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1664329 · 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: INTERNAL
•
END STYLE: VERTEX BELOW CENTER
•
MATERIAL DIAMETER: 0.093 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-474A, COMPOSITION A OR B FED SPEC SINGLE MATERIAL RESPONSE A
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OUTSIDE DIAMETER: 1.732 INCHES MINIMUM AND 1.742 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 1.639 INCHES MINIMUM AND 1.649 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
USAGE DESIGNINTERNAL
END STYLEVERTEX BELOW CENTER
MATERIAL DIAMETER0.093 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-474A, COMPOSITION A OR B FED SPEC SINGLE MATERIAL RESPONSE A
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER1.732 INCHES MINIMUM AND 1.742 INCHES MAXIMUM IN
INSIDE DIAMETER1.639 INCHES MINIMUM AND 1.649 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESTRAIGHT GAP
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
47593Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1664329?
1664329 is a RING,RETAINING.
What parts can replace 1664329?
There is 1 known substitute for 1664329: 47593. Substitute compatibility should be verified for your specific system.
What is the NSN for 1664329?
1664329 is cataloged in the U.S. Government catalog under NSN 5325-00-653-5780. 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.