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Technical Data Sheet
PartsTable / COMPONENT / 8604-1A
8604-1A ✓ 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: BUTTON, head_height: 0.088 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.364 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN, thread_length: 0.500 INCHES MINIMUM IN, screw_material: STEEL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-206-0734, 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
8604-1A
NSN: 5305-00-206-0734
FSC: 5305
CAGE: 00781 — CESSNA AIRCRAFT CO ARC AVIONICS DIV (USA)
SPECIFICATIONS
head_styleBUTTON
head_height0.088 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.364 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN
thread_length0.500 INCHES MINIMUM IN
screw_materialSTEEL
fastener_length0.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.164 INCHES IN
screw_surface_treatmentCADMIUM
minimum_tensile_strength55000 POUNDS PER SQUARE INCH LBS
NSN5305-00-206-0734
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8604-1A · 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 DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
THREAD CLASS: 2A A
•
SCREW MATERIAL: STEEL
•
HEAD DIAMETER: 0.364 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.500 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 7S STYLE
TECHNICAL CHARACTERISTICS (FLIS)
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
NOMINAL THREAD DIAMETER0.164 INCHES IN
THREAD CLASS2A A
SCREW MATERIALSTEEL
HEAD DIAMETER0.364 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN
FASTENER LENGTH0.500 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 7S STYLE
THREAD QUANTITY PER INCH32
INTERNAL DRIVE STYLESLOT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
2018841Interchangeable
interchangeable cross-reference
interchangeable
5305PL0793659Interchangeable
interchangeable cross-reference
interchangeable
AN526-832-8Interchangeable
interchangeable cross-reference
interchangeable
FFS92TYPE1STYLE7SInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8604-1A?
8604-1A is a SCREW,MACHINE.
What parts can replace 8604-1A?
There are 4 known substitutes for 8604-1A: 2018841, 5305PL0793659, AN526-832-8 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8604-1A?
8604-1A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-206-0734. 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