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1444D223-1 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1444D223-1: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, head_style: FLAT CHAMFER, head_height: 0.080 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN, thread_length: 0.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-085-3883, 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
1444D223-1
NSN: 5305-01-085-3883
FSC: 5305 — Screws
CAGE: 56672 — SYN-TECH SYSTEM, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
head_styleFLAT CHAMFER
head_height0.080 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
thread_length0.188 INCHES NOMINAL IN
fastener_length0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
hardness_rating33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
special_featuresUNDERCUT DIA BETWEEN SHOULDERS 0.505 IN.LG AND CONTAINING A SPHERICAL RADIUS 0.325 IN. DIA IN
thread_directionRIGHT-HAND
surface_treatmentPAINT OVERALL
internal_drive_styleSLOT
NSN5305-01-085-3883
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1444D223-1 · 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: 0.080 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.188 INCHES NOMINAL IN
•
HARDNESS RATING: 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.080 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
FASTENER LENGTH0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
THREAD LENGTH0.188 INCHES NOMINAL IN
HARDNESS RATING33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
SPECIAL FEATURESUNDERCUT DIA BETWEEN SHOULDERS 0.505 IN.LG AND CONTAINING A SPHERICAL RADIUS 0.325 IN. DIA IN
SURFACE TREATMENTPAINT OVERALL
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 1444D223-1?
1444D223-1 is a SCREW,SHOULDER.
What is the NSN for 1444D223-1?
1444D223-1 is cataloged in the U.S. Government catalog under NSN 5305-01-085-3883. 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.