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Technical Data Sheet
PartsTable / COMPONENT / 3M394-4
3M394-4 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, ring_style: CLOVER, usage_design: EXTERNAL, inside_diameter: 0.192 INCHES NOMINAL IN, outside_diameter: 0.350 INCHES NOMINAL IN, material_diameter: 0.024 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-124-2371, 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
3M394-4
NSN: 5325-00-124-2371
FSC: 5325
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
ring_styleCLOVER
usage_designEXTERNAL
inside_diameter0.192 INCHES NOMINAL IN
outside_diameter0.350 INCHES NOMINAL IN
material_diameter0.024 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating53.0 ROCKWELL C MINIMUM AND 58.9 ROCKWELL C MAXIMUM
cross-sectional_shape_styleROUND
NSN5325-00-124-2371
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3M394-4 · 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
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL HARDNESS RATING: 53.0 ROCKWELL C MINIMUM AND 58.9 ROCKWELL C MAXIMUM
•
MATERIAL: STEEL CORROSION RESISTING
•
RING STYLE: CLOVER
•
USAGE DESIGN: EXTERNAL
•
INSIDE DIAMETER: 0.192 INCHES NOMINAL IN
•
MATERIAL DIAMETER: 0.024 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIAL HARDNESS RATING53.0 ROCKWELL C MINIMUM AND 58.9 ROCKWELL C MAXIMUM
MATERIALSTEEL CORROSION RESISTING
RING STYLECLOVER
USAGE DESIGNEXTERNAL
INSIDE DIAMETER0.192 INCHES NOMINAL IN
MATERIAL DIAMETER0.024 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER0.350 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
T4456Interchangeable
interchangeable cross-reference
interchangeable
19434Interchangeable
interchangeable cross-reference
interchangeable
3M336-4Interchangeable
interchangeable cross-reference
interchangeable
RGP84Interchangeable
interchangeable cross-reference
interchangeable
2504Interchangeable
interchangeable cross-reference
interchangeable
57460-000Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3M394-4?
3M394-4 is a RING,RETAINING.
What parts can replace 3M394-4?
There are 14 known substitutes for 3M394-4: T4456, 19434, 3M336-4 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3M394-4?
3M394-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-124-2371. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026