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91304A155 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91304A155: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT TOP ELEVATOR, head_height: 4.0 MILLIMETERS NOMINAL MM, head_diameter: 16.0 MILLIMETERS NOMINAL MM, thread_length: 30.0 MILLIMETERS NOMINAL MM, screw_material: STEEL, fastener_length: 5.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-667-8930, 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
91304A155
NSN: 5305-01-667-8930
FSC: 5305 — Screws
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
head_styleFLAT TOP ELEVATOR
head_height4.0 MILLIMETERS NOMINAL MM
head_diameter16.0 MILLIMETERS NOMINAL MM
thread_length30.0 MILLIMETERS NOMINAL MM
screw_materialSTEEL
fastener_length5.0 MILLIMETERS NOMINAL MM
special_featuresMATERIAL IS BLUE-DYED, ZINC-PATED ALLOY STEEL;HEX HEAD DRIVE STYLE
thread_directionRIGHT-HAND
head_surface_treatmentZINC
nominal_thread_diameter8.0 MILLIMETERS MM
screw_surface_treatmentZINC
thread_series_designatorM
NSN5305-01-667-8930
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91304A155 · 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: 4.0 MILLIMETERS NOMINAL MM
•
SCREW SURFACE TREATMENT: ZINC
•
FASTENER LENGTH: 5.0 MILLIMETERS NOMINAL MM
•
THREAD PITCH IN MILLIMETERS: 1.3
•
THREAD LENGTH: 30.0 MILLIMETERS NOMINAL MM
•
NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS MM
•
HEAD SURFACE TREATMENT: ZINC
•
HEAD STYLE: FLAT TOP ELEVATOR
TECHNICAL CHARACTERISTICS
HEAD HEIGHT4.0 MILLIMETERS NOMINAL MM
SCREW SURFACE TREATMENTZINC
FASTENER LENGTH5.0 MILLIMETERS NOMINAL MM
THREAD PITCH IN MILLIMETERS1.3
THREAD LENGTH30.0 MILLIMETERS NOMINAL MM
NOMINAL THREAD DIAMETER8.0 MILLIMETERS MM
HEAD SURFACE TREATMENTZINC
HEAD STYLEFLAT TOP ELEVATOR
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL
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 91304A155?
91304A155 is a SCREW,MACHINE.
What is the NSN for 91304A155?
91304A155 is cataloged in the U.S. Government catalog under NSN 5305-01-667-8930. 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.