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X8-331 — PIN,COTTER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

X8-331: PIN,COTTER.

The PIN,COTTER is a the manufacturer industrial component. Key specifications include diameter: 0.188 INCHES NOMINAL IN, material: STEEL OVERALL, style_designator: STANDARD, underloop_length: 2.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-010-3413, 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
X8-331
NSN: 5315-00-010-3413
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 54713 — EATON CORP (USA)
SPECIFICATIONS
diameter0.188 INCHES NOMINAL IN
materialSTEEL OVERALL
style_designatorSTANDARD
underloop_length2.500 INCHES NOMINAL IN
NSN5315-00-010-3413
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: X8-331 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: STANDARD
•
DIAMETER: 0.188 INCHES NOMINAL IN
•
UNDERLOOP LENGTH: 2.500 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSTANDARD
DIAMETER0.188 INCHES NOMINAL IN
UNDERLOOP LENGTH2.500 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 7
K2620Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
G36Reference document
Same NSN cross-reference
Reference document — Secondary reference
X11-26Reference document
Same NSN cross-reference
Reference document — Secondary reference
103413Reference document
Same NSN cross-reference
Reference document — Secondary reference
X1806Reference document
Same NSN cross-reference
Reference document — Secondary reference
38X38Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is X8-331?
X8-331 is a PIN,COTTER.
What parts can replace X8-331?
There are 7 known substitutes for X8-331: K2620, G36, X11-26 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for X8-331?
X8-331 is cataloged in the U.S. Government catalog under NSN 5315-00-010-3413. 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.