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AN501C4-4 — Technical Data Sheet

✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.072 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN, thread_length: 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN, screw_material: STEEL CORROSION RESISTING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-286-1398, 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
AN501C4-4
NSN: 5305-00-286-1398
FSC: 5305
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.072 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
thread_length0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
screw_materialSTEEL CORROSION RESISTING
fastener_length0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.112 INCHES IN
screw_surface_treatmentPASSIVATE
thread_quantity_per_inch48
NSN5305-00-286-1398
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN501C4-4 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SCREW SURFACE TREATMENT: PASSIVATE
•
THREAD CLASS: 2A A
•
HEAD HEIGHT: 0.072 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 48
•
FASTENER LENGTH: 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
THREAD LENGTH: 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SCREW SURFACE TREATMENTPASSIVATE
THREAD CLASS2A A
HEAD HEIGHT0.072 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH48
FASTENER LENGTH0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
THREAD LENGTH0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
INTERNAL DRIVE STYLESLOT
HEAD STYLEFILLISTER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
32-01046-1Same_fsc
same_fsc cross-reference
same_fsc
NAS1741-3R20Same_fsc
same_fsc cross-reference
same_fsc
0010476Same_fsc
same_fsc cross-reference
same_fsc
FFS92ANDTYPE1ANDSTYLE4Interchangeable
Same NIIN cross-reference
interchangeable
ND26196-172Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN501C4-4?
AN501C4-4 is a SCREW,MACHINE.
What parts can replace AN501C4-4?
There are 5 known substitutes for AN501C4-4: 32-01046-1, NAS1741-3R20, 0010476 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN501C4-4?
AN501C4-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-286-1398. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: September 2026