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6502476 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6502476: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 4142 OR STEEL COMP 4145 OVERALL, head_style: HEXAGON, head_height: 0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.500 INCHES MINIMUM IN, fastener_length: 2.420 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-274-7958, 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
6502476
NSN: 5305-01-274-7958
FSC: 5305 — Screws
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 4142 OR STEEL COMP 4145 OVERALL
head_styleHEXAGON
head_height0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN
thread_class2A A
thread_length1.500 INCHES MINIMUM IN
fastener_length2.420 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN
hardness_rating25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
width_between_flats0.906 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN
nominal_thread_diameter0.625 INCHES IN
minimum_tensile_strength125000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch11
NSN5305-01-274-7958
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6502476 · 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
•
HEAD HEIGHT: 0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.420 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN
•
THREAD LENGTH: 1.500 INCHES MINIMUM IN
•
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A193 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN
FASTENER LENGTH2.420 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN
THREAD LENGTH1.500 INCHES MINIMUM IN
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A193 ASSN STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.906 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND B7 GRADE
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 2
MIL-DTL-1222Reference document
Same NSN cross-reference
Reference document — Identification reference
MIL-S-1222Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6502476?
6502476 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 6502476?
There are 2 known substitutes for 6502476: MIL-DTL-1222, MIL-S-1222. Substitute compatibility should be verified for your specific system.
What is the NSN for 6502476?
6502476 is cataloged in the U.S. Government catalog under NSN 5305-01-274-7958. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.