PartsTable
Technical Data Sheet
Download PDF

90275A544 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

90275A544: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, head_height: 0.153 INCHES NOMINAL IN, head_diameter: 0.477 INCHES NOMINAL IN, thread_length: 1.250 INCHES NOMINAL IN, screw_material: STEEL, fastener_length: 1.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-560-6312, 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
90275A544
NSN: 5305-01-560-6312
FSC: 5305 — Screws
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
head_height0.153 INCHES NOMINAL IN
head_diameter0.477 INCHES NOMINAL IN
thread_length1.250 INCHES NOMINAL IN
screw_materialSTEEL
fastener_length1.250 INCHES NOMINAL IN
hardness_rating70.0 ROCKWELL B NOMINAL
thread_directionRIGHT-HAND
countersink_angle82.0 DEGREES NOMINAL
internal_drive_styleSLOT
end_item_identificationROUTE CLEARANCE - UNIQUE NSN - HUSKY
nominal_thread_diameter0.250 INCHES IN
NSN5305-01-560-6312
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 90275A544 · 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: 0.153 INCHES NOMINAL IN
•
SCREW SURFACE TREATMENT: ZINC
•
FASTENER LENGTH: 1.250 INCHES NOMINAL IN
•
THREAD LENGTH: 1.250 INCHES NOMINAL IN
•
HARDNESS RATING: 70.0 ROCKWELL B NOMINAL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.153 INCHES NOMINAL IN
SCREW SURFACE TREATMENTZINC
FASTENER LENGTH1.250 INCHES NOMINAL IN
THREAD LENGTH1.250 INCHES NOMINAL IN
HARDNESS RATING70.0 ROCKWELL B NOMINAL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL
MINIMUM TENSILE STRENGTH60000 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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 90275A544?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 90275A544?
90275A544 is a SCREW,MACHINE.
What is the NSN for 90275A544?
90275A544 is cataloged in the U.S. Government catalog under NSN 5305-01-560-6312. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 90275A544

✓ 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.