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03301-01 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
Trevi · BOLT SCREW
PRODUCT OVERVIEW

03301-01: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a Trevi industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.281 INCHES MINIMUM IN, thread_class: 2A A, thread_length: 1.250 INCHES MINIMUM IN, fastener_length: 1.531 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-533-8209, 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
03301-01
NSN: 5305-01-533-8209
FSC: 5305 — Screws
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.281 INCHES MINIMUM IN
thread_class2A A
thread_length1.250 INCHES MINIMUM IN
fastener_length1.531 INCHES MINIMUM IN
hardness_rating25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_between_flats0.750 INCHES MINIMUM IN
nominal_thread_diameter0.500 INCHES IN
minimum_tensile_strength120000 POUNDS PER SQUARE INCH LBS
NSN5305-01-533-8209
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 03301-01 · Trevi ⚠ 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: 0.281 INCHES MINIMUM IN
•
FASTENER LENGTH: 1.531 INCHES MINIMUM IN
•
THREAD LENGTH: 1.250 INCHES MINIMUM IN
•
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.750 INCHES MINIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.281 INCHES MINIMUM IN
FASTENER LENGTH1.531 INCHES MINIMUM IN
THREAD LENGTH1.250 INCHES MINIMUM IN
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.750 INCHES MINIMUM IN
SURFACE TREATMENTZINC OVERALL
MINIMUM TENSILE STRENGTH120000 POUNDS PER SQUARE INCH LBS
SUBSTITUTES & CROSS-REFERENCES 2
3000400-392Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
92865A714Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 03301-01?
03301-01 is a SCREW,CAP,HEXAGON HEAD manufactured by Trevi.
What parts can replace 03301-01?
There are 2 known substitutes for 03301-01: 3000400-392, 92865A714. Substitute compatibility should be verified for your specific system.
What is the NSN for 03301-01?
03301-01 is cataloged in the U.S. Government catalog under NSN 5305-01-533-8209. 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.