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Technical Data Sheet
PartsTable / COMPONENT / 204-040-624-001
204-040-624-001 ✓ 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 BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: BEVEL-CONICAL, head_height: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.521 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN, thread_length: 0.537 INCHES MINIMUM AND 0.587 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 5306-00-724-3593, 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
204-040-624-001
NSN: 5306-00-724-3593
FSC: 5306
CAGE: 97499 — BELL TEXTRON INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleBEVEL-CONICAL
head_height0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.521 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
thread_length0.537 INCHES MINIMUM AND 0.587 INCHES MAXIMUM IN
fastener_length2.797 INCHES MINIMUM AND 2.827 INCHES MAXIMUM IN
hardness_rating34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.219 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
NSN5306-00-724-3593
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 204-040-624-001 · 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
•
MINIMUM TENSILE STRENGTH: 160000 POUNDS PER SQUARE INCH LBS
•
HARDNESS RATING: 34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
•
HEAD STYLE: BEVEL-CONICAL
•
HEAD DIAMETER: 0.521 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER: 2.700 INCHES MINIMUM AND 2.710 INCHES MAXIMUM FIRST HOLE IN
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
THREAD SERIES DESIGNATOR: UNF
TECHNICAL CHARACTERISTICS (FLIS)
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH LBS
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEBEVEL-CONICAL
HEAD DIAMETER0.521 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER2.700 INCHES MINIMUM AND 2.710 INCHES MAXIMUM FIRST HOLE IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH24
WIDTH ACROSS FLATS0.219 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
ASME B94.19Interchangeable
interchangeable cross-reference
interchangeable
M114Interchangeable
interchangeable cross-reference
interchangeable
GGG-C-755Interchangeable
interchangeable cross-reference
interchangeable
AR10Interchangeable
interchangeable cross-reference
interchangeable
XJ12Interchangeable
interchangeable cross-reference
interchangeable
716P1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 204-040-624-001?
204-040-624-001 is a BOLT,INTERNAL WRENCHING.
What parts can replace 204-040-624-001?
There are 16 known substitutes for 204-040-624-001: ASME B94.19, M114, GGG-C-755 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 204-040-624-001?
204-040-624-001 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-724-3593. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026