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98401A597 — PIN,COTTER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

98401A597: PIN,COTTER.

The PIN,COTTER is a the manufacturer industrial component. Key specifications include diameter: 0.312 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING OVERALL, point_type: EXTENDED PRONG SQUARE CUT, style_designator: STANDARD, underloop_length: 3.500 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: 18-8 STAINLESS STEEL COTTER PIN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-608-6840, 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
98401A597
NSN: 5315-01-608-6840
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 2V507 — MCMASTER-CARR SUPPLY COMPANY (USA)
SPECIFICATIONS
diameter0.312 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING OVERALL
point_typeEXTENDED PRONG SQUARE CUT
style_designatorSTANDARD
underloop_length3.500 INCHES NOMINAL IN
part_name_assigned_by_controlling_agency18-8 STAINLESS STEEL COTTER PIN
NSN5315-01-608-6840
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 98401A597 · 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: 0.312 INCHES NOMINAL IN
•
UNDERLOOP LENGTH: 3.500 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
POINT TYPE: EXTENDED PRONG SQUARE CUT
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSTANDARD
DIAMETER0.312 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCY18-8 STAINLESS STEEL COTTER PIN
UNDERLOOP LENGTH3.500 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OVERALL
POINT TYPEEXTENDED PRONG SQUARE CUT
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 98401A597?
98401A597 is a PIN,COTTER.
What is the NSN for 98401A597?
98401A597 is cataloged in the U.S. Government catalog under NSN 5315-01-608-6840. 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.