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MS24665-638 — PIN,COTTER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS24665-638: PIN,COTTER.

The PIN,COTTER is a the manufacturer industrial component. Key specifications include diameter: 0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN, material: STEEL COMP 304 OVERALL, point_type: EXTENDED PRONG SQUARE CUT, hardness_rating: 55.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 67.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL, style_designator: STANDARD, underloop_length: 1.375 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-059-0543, 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
MS24665-638
NSN: 5315-00-059-0543
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
diameter0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
materialSTEEL COMP 304 OVERALL
point_typeEXTENDED PRONG SQUARE CUT
hardness_rating55.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 67.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
style_designatorSTANDARD
underloop_length1.375 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
material_document_and_classificationASTM A493 ASSN STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5315-00-059-0543
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS24665-638 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 55.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 67.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
•
STYLE DESIGNATOR: STANDARD
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A493 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
DIAMETER: 0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
UNDERLOOP LENGTH: 1.375 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 304 OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING55.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 67.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
STYLE DESIGNATORSTANDARD
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A493 ASSN STD ALL MATERIAL RESPONSES OVERALL
DIAMETER0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
UNDERLOOP LENGTH1.375 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
MATERIALSTEEL COMP 304 OVERALL
POINT TYPEEXTENDED PRONG SQUARE CUT
SUBSTITUTES & CROSS-REFERENCES 4
132-150Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
100347-9000-031Reference document
Same NSN cross-reference
Reference document — Secondary reference
NASM24665Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
5315PL2203279Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 MS24665-638?
MS24665-638 is a PIN,COTTER.
What parts can replace MS24665-638?
There are 4 known substitutes for MS24665-638: 132-150, 100347-9000-031, NASM24665 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS24665-638?
MS24665-638 is cataloged in the U.S. Government catalog under NSN 5315-00-059-0543. 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.