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93585A190 — THUMBSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

93585A190: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 18.8 OVERALL, head_style: KNURLED NO. 3, head_height: 0.50 INCHES NOMINAL IN, head_diameter: 0.625 INCHES NOMINAL IN, thread_length: 0.75 INCHES NOMINAL IN, special_features: HEAD PROFILE HIGH;DRIVE STYLE UNSLOTTED;ROHS COMPLIANT;FULL-THREADED SCREWS;CLASS 2A THEAD FIT INCH SIZES A.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-661-0653, 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
93585A190
NSN: 5305-01-661-0653
FSC: 5305 — Screws
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 18.8 OVERALL
head_styleKNURLED NO. 3
head_height0.50 INCHES NOMINAL IN
head_diameter0.625 INCHES NOMINAL IN
thread_length0.75 INCHES NOMINAL IN
special_featuresHEAD PROFILE HIGH;DRIVE STYLE UNSLOTTED;ROHS COMPLIANT;FULL-THREADED SCREWS;CLASS 2A THEAD FIT INCH SIZES A
nominal_thread_diameter0.625 INCHES IN
part_name_assigned_by_controlling_agency18-8 STAINLESS STEEL KNURLED HEAD THUMB SCREW
NSN5305-01-661-0653
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 93585A190 · 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: 0.50 INCHES NOMINAL IN
•
THREAD LENGTH: 0.75 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
HEAD STYLE: KNURLED NO. 3
•
MATERIAL: STEEL PROPERTY CLASS 18.8 OVERALL
•
HEAD DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.50 INCHES NOMINAL IN
THREAD LENGTH0.75 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLEKNURLED NO. 3
SPECIAL FEATURESHEAD PROFILE HIGH;DRIVE STYLE UNSLOTTED;ROHS COMPLIANT;FULL-THREADED SCREWS;CLASS 2A THEAD FIT INCH SIZES A
PART NAME ASSIGNED BY CONTROLLING AGENCY18-8 STAINLESS STEEL KNURLED HEAD THUMB SCREW
MATERIALSTEEL PROPERTY CLASS 18.8 OVERALL
HEAD DIAMETER0.625 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
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 93585A190?
93585A190 is a THUMBSCREW.
What is the NSN for 93585A190?
93585A190 is cataloged in the U.S. Government catalog under NSN 5305-01-661-0653. 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.