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91247A803 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91247A803: 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: 0.391 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 2.250 INCHES NOMINAL IN, fastener_length: 2.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-533-3772, 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
91247A803
NSN: 5305-01-533-3772
FSC: 5305 — Screws
CAGE: 3A054 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.391 INCHES NOMINAL IN
thread_class2A A
thread_length2.250 INCHES NOMINAL IN
fastener_length2.250 INCHES NOMINAL IN
special_featuresGRADE 5 ZINC-PLATED STEEL HEX HEAD CAP SCREW, 5/8 INCH-11 THREAD, 2 1/4 INCHES LONG IN
thread_directionRIGHT-HAND
width_between_flats0.938 INCHES NOMINAL IN
nominal_thread_diameter0.625 INCHES IN
thread_quantity_per_inch11
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-533-3772
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91247A803 · 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: 0.391 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.250 INCHES NOMINAL IN
•
THREAD LENGTH: 2.250 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.938 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.391 INCHES NOMINAL IN
FASTENER LENGTH2.250 INCHES NOMINAL IN
THREAD LENGTH2.250 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.938 INCHES NOMINAL IN
SPECIAL FEATURESGRADE 5 ZINC-PLATED STEEL HEX HEAD CAP SCREW, 5/8 INCH-11 THREAD, 2 1/4 INCHES LONG IN
THREAD CLASS2A A
THREAD QUANTITY PER INCH11
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 1
3000400-477Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 91247A803?
91247A803 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 91247A803?
There is 1 known substitute for 91247A803: 3000400-477. Substitute compatibility should be verified for your specific system.
What is the NSN for 91247A803?
91247A803 is cataloged in the U.S. Government catalog under NSN 5305-01-533-3772. 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.