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Technical Data Sheet
PartsTable / COMPONENT / 594302
594302 ✓ 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,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN, thread_length: 1.500 INCHES MAXIMUM IN, fastener_length: 1.500 INCHES NOMINAL 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 5305-00-291-6800, 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
594302
NSN: 5305-00-291-6800
FSC: 5305
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
head_styleFLAT COUNTERSUNK
thread_class3A A
head_diameter0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
thread_length1.500 INCHES MAXIMUM IN
fastener_length1.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
countersink_angle82.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM
width_across_flats0.312 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.500 INCHES IN
thread_quantity_per_inch20
NSN5305-00-291-6800
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 594302 · 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
•
MATERIAL: STEEL COMP 4140 OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
THREAD QUANTITY PER INCH: 20
•
WIDTH ACROSS FLATS: 0.312 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD DIAMETER: 0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
•
COUNTERSINK ANGLE: 82.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM
•
FASTENER LENGTH: 1.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 4140 OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
THREAD QUANTITY PER INCH20
WIDTH ACROSS FLATS0.312 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
HEAD DIAMETER0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
COUNTERSINK ANGLE82.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM
FASTENER LENGTH1.500 INCHES NOMINAL IN
THREAD CLASS3A A
THREAD SERIES DESIGNATORUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
1635-2Interchangeable
interchangeable cross-reference
interchangeable
185241Interchangeable
interchangeable cross-reference
interchangeable
6515NCM105540Interchangeable
interchangeable cross-reference
interchangeable
310.288Interchangeable
interchangeable cross-reference
interchangeable
10G824Interchangeable
Same NIIN cross-reference
interchangeable
17196C4Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 594302?
594302 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 594302?
There are 6 known substitutes for 594302: 1635-2, 185241, 6515NCM105540 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 594302?
594302 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-291-6800. 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