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595458 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

595458: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.591 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 2.500 INCHES MINIMUM AND 2.688 INCHES MAXIMUM IN, fastener_length: 8.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-331-4817, 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
595458
NSN: 5305-00-331-4817
FSC: 5305 — Screws
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.591 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
thread_class2A A
thread_length2.500 INCHES MINIMUM AND 2.688 INCHES MAXIMUM IN
fastener_length8.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats1.469 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
nominal_thread_diameter1.000 INCHES IN
thread_quantity_per_inch14
thread_series_designatorUNS
NSN5305-00-331-4817
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 595458 · 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: 0.591 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
•
FASTENER LENGTH: 8.250 INCHES NOMINAL IN
•
THREAD LENGTH: 2.500 INCHES MINIMUM AND 2.688 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 1.000 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 1.469 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.591 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
FASTENER LENGTH8.250 INCHES NOMINAL IN
THREAD LENGTH2.500 INCHES MINIMUM AND 2.688 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER1.000 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS1.469 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
THREAD CLASS2A A
THREAD QUANTITY PER INCH14
MATERIALSTEEL OVERALL
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 1
5305003314817Reference 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 595458?
595458 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 595458?
There is 1 known substitute for 595458: 5305003314817. Substitute compatibility should be verified for your specific system.
What is the NSN for 595458?
595458 is cataloged in the U.S. Government catalog under NSN 5305-00-331-4817. 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.