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91247A738 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91247A738: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.34375 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.50 INCHES MINIMUM IN, special_features: GRADE 5;PARTIALLY THREADED;7INCHES LONG;MEDIUM STRENGTH IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-666-3359, 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
91247A738
NSN: 5305-01-666-3359
FSC: 5305 — Screws
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.34375 INCHES NOMINAL IN
thread_class2A A
thread_length1.50 INCHES MINIMUM IN
special_featuresGRADE 5;PARTIALLY THREADED;7INCHES LONG;MEDIUM STRENGTH IN
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
nominal_thread_diameter0.50 INCHES IN
minimum_tensile_strength120000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch13
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-666-3359
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91247A738 · 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: 0.34375 INCHES NOMINAL IN
•
THREAD LENGTH: 1.50 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.50 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
SURFACE TREATMENT: ZINC OVERALL
•
MINIMUM TENSILE STRENGTH: 120000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.34375 INCHES NOMINAL IN
THREAD LENGTH1.50 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.50 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
SPECIAL FEATURESGRADE 5;PARTIALLY THREADED;7INCHES LONG;MEDIUM STRENGTH IN
SURFACE TREATMENTZINC OVERALL
MINIMUM TENSILE STRENGTH120000 POUNDS PER SQUARE INCH LBS
PART NAME ASSIGNED BY CONTROLLING AGENCYSTEEL HEX HEAD SCREW
THREAD CLASS2A A
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91247A738?
91247A738 is a SCREW,CAP,SOCKET HEAD.
What is the NSN for 91247A738?
91247A738 is cataloged in the U.S. Government catalog under NSN 5305-01-666-3359. 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.