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Technical Data Sheet
PartsTable / COMPONENT / XRC318
XRC318 ✓ 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: 0.353 INCHES NOMINAL IN, major_thickness: 0.029 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 5325-00-055-7122, 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
XRC318
NSN: 5325-00-055-7122
FSC: 5325
CAGE: 98738 — HERLEY CHICAGO DBA STEWART WARNER ELECTRONICS (USA)
SPECIFICATIONS
materialSTEEL
end_style90 DEGREE PARALLEL
ring_styleSTRAIGHT GAP
usage_designEXTERNAL
inside_diameter0.353 INCHES NOMINAL IN
major_thickness0.029 INCHES NOMINAL IN
outside_diameter0.382 INCHES NOMINAL IN
material_diameter0.015 INCHES NOMINAL IN
surface_treatmentNICKEL
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleROUND
NSN5325-00-055-7122
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: XRC318 · 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: 0.015 INCHES NOMINAL IN
•
SURFACE TREATMENT: NICKEL
•
MATERIAL: STEEL
•
RING STYLE: STRAIGHT GAP
•
END STYLE: 90 DEGREE PARALLEL
•
INSIDE DIAMETER: 0.353 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MAJOR THICKNESS: 0.029 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DIAMETER0.015 INCHES NOMINAL IN
SURFACE TREATMENTNICKEL
MATERIALSTEEL
RING STYLESTRAIGHT GAP
END STYLE90 DEGREE PARALLEL
INSIDE DIAMETER0.353 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
MAJOR THICKNESS0.029 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER0.382 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
108-N1Interchangeable
interchangeable cross-reference
interchangeable
100016Interchangeable
interchangeable cross-reference
interchangeable
5800332-1500-005Interchangeable
Same NIIN cross-reference
interchangeable
108Interchangeable
Same NIIN cross-reference
interchangeable
390086-02CInterchangeable
Same NIIN cross-reference
interchangeable
390086-02Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is XRC318?
XRC318 is a RING,RETAINING.
What parts can replace XRC318?
There are 6 known substitutes for XRC318: 108-N1, 100016, 5800332-1500-005 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for XRC318?
XRC318 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-055-7122. 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