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Technical Data Sheet
A20524 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The PIN,COTTER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 OVERALL, surface_finish: 64.0 MICROINCHES BOTH ENDS, first_end_style: CHAMFERED, hardness_rating: 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL, pin_overall_length: 2.432 INCHES MINIMUM AND 2.442 INCHES MAXIMUM IN, pin_overall_diameter: 0.1200 INCHES MINIMUM AND 0.1220 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-571-9054, 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
A20524
NSN: 5330-00-571-9054
FSC: 5330
CAGE: 14487 — PROVISION, INC. DBA PROVISION INC (USA)
SPECIFICATIONS
materialSTEEL COMP 416 OVERALL
surface_finish64.0 MICROINCHES BOTH ENDS
first_end_styleCHAMFERED
hardness_rating39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
pin_overall_length2.432 INCHES MINIMUM AND 2.442 INCHES MAXIMUM IN
pin_overall_diameter0.1200 INCHES MINIMUM AND 0.1220 INCHES MAXIMUM IN
first_end_taper_angle45.0 DEGREES NOMINAL
first_end_taper_length0.005 INCHES MINIMUM AND 0.010 INCHES MAXIMUM IN
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN5330-00-571-9054
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A20524 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
CRITICALITY CODE JUSTIFICATION: ZZZY
TECHNICAL CHARACTERISTICS (FLIS)
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
CRITICALITY CODE JUSTIFICATIONZZZY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
AN381-2-8Interchangeable
interchangeable cross-reference
interchangeable
A20524Interchangeable
interchangeable cross-reference
interchangeable
37503140Interchangeable
interchangeable cross-reference
interchangeable
20524Interchangeable
interchangeable cross-reference
interchangeable
A20524CPInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A20524?
A20524 is a PIN,COTTER.
What parts can replace A20524?
There are 5 known substitutes for A20524: AN381-2-8, A20524, 37503140 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A20524?
A20524 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-571-9054. This indicates validated use in U.S. government and defense supply chains.
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