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1S686 — PIN,COTTER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1S686: PIN,COTTER.

The PIN,COTTER is a the manufacturer industrial component. Key specifications include diameter: 0.125 INCHES NOMINAL IN, material: STEEL OVERALL, point_type: EXTENDED PRONG MITRE END, hardness_rating: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL, style_designator: STANDARD, underloop_length: 1.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-491-7573, 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
1S686
NSN: 5315-00-491-7573
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
diameter0.125 INCHES NOMINAL IN
materialSTEEL OVERALL
point_typeEXTENDED PRONG MITRE END
hardness_rating23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSTANDARD
underloop_length1.125 INCHES NOMINAL IN
material_document_and_classification1E359,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-491-7573
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1S686 · 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
•
HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: STANDARD
•
MATERIAL DOCUMENT AND CLASSIFICATION: 1E359,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.125 INCHES NOMINAL IN
•
UNDERLOOP LENGTH: 1.125 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
POINT TYPE: EXTENDED PRONG MITRE END
TECHNICAL CHARACTERISTICS
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSTANDARD
MATERIAL DOCUMENT AND CLASSIFICATION1E359,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.125 INCHES NOMINAL IN
UNDERLOOP LENGTH1.125 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
POINT TYPEEXTENDED PRONG MITRE END
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES 1
1S0686Reference 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 1S686?
1S686 is a PIN,COTTER.
What parts can replace 1S686?
There is 1 known substitute for 1S686: 1S0686. Substitute compatibility should be verified for your specific system.
What is the NSN for 1S686?
1S686 is cataloged in the U.S. Government catalog under NSN 5315-00-491-7573. 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.