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PartsTable / COMPONENT / 4591394
4591394 ✓ 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 SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEADLESS (SETSCREW), point_style: CUP, fastener_length: 0.750 INCHES NOMINAL IN, special_features: 0.375 INCH DIAMETER. THREAD IS COARSE.

THREAD SIZE IS 16. IN, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-530-0549, 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
4591394
NSN: 5305-01-530-0549
FSC: 5305
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEADLESS (SETSCREW)
point_styleCUP
fastener_length0.750 INCHES NOMINAL IN
special_features0.375 INCH DIAMETER. THREAD IS COARSE. THREAD SIZE IS 16. IN
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_across_flats0.188 INCHES NOMINAL IN
internal_drive_styleHEXAGON
part_name_assigned_by_controlling_agencySOCKET SET SCREW
NSN5305-01-530-0549
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4591394 · 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
•
WIDTH ACROSS FLATS: 0.188 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: CUP
•
HEAD STYLE: HEADLESS (SETSCREW)
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS0.188 INCHES NOMINAL IN
FASTENER LENGTH0.750 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYSOCKET SET SCREW
THREAD DIRECTIONRIGHT-HAND
POINT STYLECUP
HEAD STYLEHEADLESS (SETSCREW)
SPECIAL FEATURES0.375 INCH DIAMETER. THREAD IS COARSE. THREAD SIZE IS 16. IN
INTERNAL DRIVE STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
300-1046Interchangeable
interchangeable cross-reference
interchangeable
7618386P1Interchangeable
interchangeable cross-reference
interchangeable
LT7K102Interchangeable
interchangeable cross-reference
interchangeable
354-61-25-001Interchangeable
interchangeable cross-reference
interchangeable
25-541Interchangeable
interchangeable cross-reference
interchangeable
004-00535-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4591394?
4591394 is a SETSCREW.
What parts can replace 4591394?
There are 11 known substitutes for 4591394: 300-1046, 7618386P1, LT7K102 and 8 more. Substitute compatibility should be verified for your specific system.
Is 4591394 still available?
4591394 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026