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PartsTable / COMPONENT / D9578-28A13
D9578-28A13 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The PIN,COTTER is a the manufacturer industrial component. Key specifications include diameter: 0.125 INCHES NOMINAL IN, material: STEEL COMP 1008 OVERALL, style_designator: STANDARD, underloop_length: 0.750 INCHES NOMINAL IN, surface_treatment: CADMIUM OR ZINC OVERALL, material_document_and_classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-017-7923, 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
D9578-28A13
NSN: 5315-00-017-7923
FSC: 5315
CAGE: 91340 — MET-PRO CORPORATION (USA)
SPECIFICATIONS
diameter0.125 INCHES NOMINAL IN
materialSTEEL COMP 1008 OVERALL
style_designatorSTANDARD
underloop_length0.750 INCHES NOMINAL IN
surface_treatmentCADMIUM OR ZINC OVERALL
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-017-7923
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: D9578-28A13 · 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: CADMIUM OR ZINC OVERALL
•
STYLE DESIGNATOR: STANDARD
•
DIAMETER: 0.125 INCHES NOMINAL IN
•
UNDERLOOP LENGTH: 0.750 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1008 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
STYLE DESIGNATORSTANDARD
DIAMETER0.125 INCHES NOMINAL IN
UNDERLOOP LENGTH0.750 INCHES NOMINAL IN
MATERIALSTEEL COMP 1008 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
177923Interchangeable
interchangeable cross-reference
interchangeable
177923PC2Interchangeable
interchangeable cross-reference
interchangeable
50208Interchangeable
interchangeable cross-reference
interchangeable
PB426Interchangeable
interchangeable cross-reference
interchangeable
V5044Interchangeable
interchangeable cross-reference
interchangeable
5534Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D9578-28A13?
D9578-28A13 is a PIN,COTTER.
What parts can replace D9578-28A13?
There are 19 known substitutes for D9578-28A13: 177923, 177923PC2, 50208 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D9578-28A13?
D9578-28A13 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-017-7923. 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