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Technical Data Sheet
PartsTable / COMPONENT / 8A7210
8A7210 ✓ 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, end_style: VERTEX OUTSIDE PERIPHERY, ring_style: STRAIGHT GAP, usage_design: EXTERNAL, inside_diameter: 2.000 INCHES MINIMUM AND 2.031 INCHES MAXIMUM IN, major_thickness: 0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-281-6719, 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
8A7210
NSN: 5325-00-281-6719
FSC: 5325
CAGE: 95201 — NAPCO INTERNATIONAL LLC DBA NAPCO INTERNATIONAL INC (USA)
SPECIFICATIONS
materialSTEEL
end_styleVERTEX OUTSIDE PERIPHERY
ring_styleSTRAIGHT GAP
usage_designEXTERNAL
inside_diameter2.000 INCHES MINIMUM AND 2.031 INCHES MAXIMUM IN
major_thickness0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
outside_diameter2.438 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating44.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
cross-sectional_shape_styleROUNDED CORNERS
NSN5325-00-281-6719
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8A7210 · 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
•
MAJOR THICKNESS: 0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
•
MATERIAL: STEEL
•
CROSS-SECTIONAL SHAPE STYLE: ROUNDED CORNERS
•
RING STYLE: STRAIGHT GAP
•
END STYLE: VERTEX OUTSIDE PERIPHERY
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
OUTSIDE DIAMETER: 2.438 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 2.000 INCHES MINIMUM AND 2.031 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MAJOR THICKNESS0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
MATERIALSTEEL
CROSS-SECTIONAL SHAPE STYLEROUNDED CORNERS
RING STYLESTRAIGHT GAP
END STYLEVERTEX OUTSIDE PERIPHERY
CASEHARDENING INDICATORNOT CASEHARDENED
OUTSIDE DIAMETER2.438 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN
INSIDE DIAMETER2.000 INCHES MINIMUM AND 2.031 INCHES MAXIMUM IN
USAGE DESIGNEXTERNAL
MATERIAL HARDNESS RATING44.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
4504Interchangeable
interchangeable cross-reference
interchangeable
70-0060-3100-2Interchangeable
interchangeable cross-reference
interchangeable
MP-T0008-308Interchangeable
interchangeable cross-reference
interchangeable
91A2173AInterchangeable
interchangeable cross-reference
interchangeable
460C6-108-6Interchangeable
interchangeable cross-reference
interchangeable
4-X-100Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8A7210?
8A7210 is a RING,RETAINING.
What parts can replace 8A7210?
There are 14 known substitutes for 8A7210: 4504, 70-0060-3100-2, MP-T0008-308 and 11 more. Substitute compatibility should be verified for your specific system.
Is 8A7210 still available?
8A7210 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026