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3921453 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3921453: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, ring_style: EXTERNAL, usage_design: EXTERNAL, inside_diameter: 1.85 INCHES NOMINAL IN, major_thickness: 0.062 INCHES NOMINAL IN, special_features: MAGNETIC. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-658-4202, 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
3921453
NSN: 5325-01-658-4202
FSC: 5325 — Fastening Devices
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL
ring_styleEXTERNAL
usage_designEXTERNAL
inside_diameter1.85 INCHES NOMINAL IN
major_thickness0.062 INCHES NOMINAL IN
special_featuresMAGNETIC
surface_treatmentZINC AND CHROMATE
end_item_identification3930-01-641-7505
material_hardness_rating40.00 ROCKWELL C NOMINAL
specification/standard_data05047-ASME B18.27.1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN5325-01-658-4202
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3921453 · 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: 40.00 ROCKWELL C NOMINAL
•
USAGE DESIGN: EXTERNAL
•
SPECIFICATION/STANDARD DATA: 05047-ASME B18.27.1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
MAJOR THICKNESS: 0.062 INCHES NOMINAL IN
•
INSIDE DIAMETER: 1.85 INCHES NOMINAL IN
•
RING STYLE: EXTERNAL
•
SURFACE TREATMENT: ZINC AND CHROMATE
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING40.00 ROCKWELL C NOMINAL
USAGE DESIGNEXTERNAL
SPECIFICATION/STANDARD DATA05047-ASME B18.27.1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MAJOR THICKNESS0.062 INCHES NOMINAL IN
INSIDE DIAMETER1.85 INCHES NOMINAL IN
RING STYLEEXTERNAL
SPECIAL FEATURESMAGNETIC
SURFACE TREATMENTZINC AND CHROMATE
END ITEM IDENTIFICATION3930-01-641-7505
MATERIALSTEEL
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 3921453?
3921453 is a RING,RETAINING.
What is the NSN for 3921453?
3921453 is cataloged in the U.S. Government catalog under NSN 5325-01-658-4202. 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.