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91251A444 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91251A444: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: CHAMFER FLANGE, head_height: 0.25 INCHES NOMINAL IN, head_length: 0.375 INCHES NOMINAL IN, head_diameter: 0.375 INCHES NOMINAL IN, fastener_length: 0.25 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-686-7796, 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
91251A444
NSN: 5305-01-686-7796
FSC: 5305 — Screws
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleCHAMFER FLANGE
head_height0.25 INCHES NOMINAL IN
head_length0.375 INCHES NOMINAL IN
head_diameter0.375 INCHES NOMINAL IN
hole_quantity1
fastener_length0.25 INCHES NOMINAL IN
special_featuresHARDNESS, ROCKWELL C37
thread_directionRIGHT-HAND
surface_treatmentOXIDE OVERALL
internal_drive_styleHEXAGON
hole_configuration_styleROUND INTERNAL HEXAGON
NSN5305-01-686-7796
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91251A444 · 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: 0.25 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.25 INCHES NOMINAL IN
•
HOLE CONFIGURATION STYLE: ROUND INTERNAL HEXAGON
•
HEAD STYLE: CHAMFER FLANGE
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD LENGTH: 0.375 INCHES NOMINAL IN
•
COLOR: BLACK OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.25 INCHES NOMINAL IN
FASTENER LENGTH0.25 INCHES NOMINAL IN
HOLE CONFIGURATION STYLEROUND INTERNAL HEXAGON
HEAD STYLECHAMFER FLANGE
THREAD DIRECTIONRIGHT-HAND
HEAD LENGTH0.375 INCHES NOMINAL IN
COLORBLACK OVERALL
SPECIAL FEATURESHARDNESS, ROCKWELL C37
SURFACE TREATMENTOXIDE OVERALL
MINIMUM YIELD STRENGTH170000 POUNDS PER SQUARE INCH LBS
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 91251A444?
91251A444 is a SCREW,CAP,SOCKET HEAD.
What is the NSN for 91251A444?
91251A444 is cataloged in the U.S. Government catalog under NSN 5305-01-686-7796. 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.