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Technical Data Sheet
PartsTable / COMPONENT / SR3-I8
SR3-I8 ✓ 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: 90 DEGREE PARALLEL, ring_style: STRAIGHT GAP, usage_design: EXTERNAL, inside_diameter: 0.166 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN, outside_diameter: 0.216 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 5325-00-052-6998, 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
SR3-I8
NSN: 5325-00-052-6998
FSC: 5325
CAGE: 72794 — SOUTHCO INC (USA)
SPECIFICATIONS
materialSTEEL
end_style90 DEGREE PARALLEL
ring_styleSTRAIGHT GAP
usage_designEXTERNAL
inside_diameter0.166 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
outside_diameter0.216 INCHES NOMINAL IN
material_diameter0.020 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleROUND
NSN5325-00-052-6998
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SR3-I8 · 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 DIAMETER: 0.020 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN
•
END STYLE: 90 DEGREE PARALLEL
•
MATERIAL: STEEL
•
OUTSIDE DIAMETER: 0.216 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
INSIDE DIAMETER: 0.166 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
•
RING STYLE: STRAIGHT GAP
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DIAMETER0.020 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN
END STYLE90 DEGREE PARALLEL
MATERIALSTEEL
OUTSIDE DIAMETER0.216 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE DIAMETER0.166 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
RING STYLESTRAIGHT GAP
CASEHARDENING INDICATORNOT CASEHARDENED
USAGE DESIGNEXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
38PInterchangeable
interchangeable cross-reference
interchangeable
10119117Interchangeable
interchangeable cross-reference
interchangeable
3SSInterchangeable
interchangeable cross-reference
interchangeable
SR3SSInterchangeable
interchangeable cross-reference
interchangeable
74143Interchangeable
interchangeable cross-reference
interchangeable
K3622Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SR3-I8?
SR3-I8 is a RING,RETAINING.
What parts can replace SR3-I8?
There are 9 known substitutes for SR3-I8: 38P, 10119117, 3SS and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SR3-I8?
SR3-I8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-052-6998. 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