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90403A148 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

90403A148: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: ROUND, head_height: 0.097 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.270 INCHES NOMINAL IN, thread_length: 0.500 INCHES NOMINAL IN, screw_material: STEEL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-681-8967, 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
90403A148
NSN: 5305-01-681-8967
FSC: 5305 — Screws
CAGE: 2V507 — MCMASTER-CARR SUPPLY COMPANY (USA)
SPECIFICATIONS
head_styleROUND
head_height0.097 INCHES NOMINAL IN
thread_class2A A
head_diameter0.270 INCHES NOMINAL IN
thread_length0.500 INCHES NOMINAL IN
screw_materialSTEEL
fastener_length0.597 INCHES NOMINAL IN
hardness_rating69.0 ROCKWELL B NOMINAL
locking_featureLOCKING TEETH
thread_directionRIGHT-HAND
features_providedLOCK WASHER
head_surface_treatmentZINC
NSN5305-01-681-8967
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 90403A148 · 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
•
EXTENDED WASHER THICKNESS: 0.021 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.097 INCHES NOMINAL IN
•
SCREW SURFACE TREATMENT: ZINC
•
FASTENER LENGTH: 0.597 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 0.288 INCHES NOMINAL IN
•
THREAD LENGTH: 0.500 INCHES NOMINAL IN
•
HARDNESS RATING: 69.0 ROCKWELL B NOMINAL
•
LOCKING FEATURE MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.021 INCHES NOMINAL IN
HEAD HEIGHT0.097 INCHES NOMINAL IN
SCREW SURFACE TREATMENTZINC
FASTENER LENGTH0.597 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.288 INCHES NOMINAL IN
THREAD LENGTH0.500 INCHES NOMINAL IN
HARDNESS RATING69.0 ROCKWELL B NOMINAL
LOCKING FEATURE MATERIALSTEEL
NOMINAL THREAD DIAMETER0.138 INCHES IN
FEATURES PROVIDEDLOCK WASHER
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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90403A148?
90403A148 is a SCREW,MACHINE.
What is the NSN for 90403A148?
90403A148 is cataloged in the U.S. Government catalog under NSN 5305-01-681-8967. 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.