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435-623-253 — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

435-623-253: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include head_style: HEADLESS (SETSCREW), point_style: HALF DOG, thread_class: 3A A, fastener_length: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-227-9836, 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
435-623-253
NSN: 5305-01-227-9836
FSC: 5305 — Screws
CAGE: 62842 — ALLIED HEALTHCARE PRODUCTS, INC. DBA ALLIED (USA)
SPECIFICATIONS
head_styleHEADLESS (SETSCREW)
point_styleHALF DOG
thread_class3A A
fastener_length0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.050 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.112 INCHES IN
thread_quantity_per_inch40
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-227-9836
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 435-623-253 · 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
•
WIDTH ACROSS FLATS: 0.050 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD STYLE: HEADLESS (SETSCREW)
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: HALF DOG
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
INTERNAL DRIVE STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.050 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN
FASTENER LENGTH0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEHEADLESS (SETSCREW)
THREAD DIRECTIONRIGHT-HAND
POINT STYLEHALF DOG
SURFACE TREATMENTPASSIVATE OVERALL
INTERNAL DRIVE STYLEHEXAGON
THREAD CLASS3A A
THREAD QUANTITY PER INCH40
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
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FREQUENTLY ASKED QUESTIONS
What is 435-623-253?
435-623-253 is a SETSCREW.
What is the NSN for 435-623-253?
435-623-253 is cataloged in the U.S. Government catalog under NSN 5305-01-227-9836. 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.