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PC453281 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

PC453281: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: ROUND, head_height: 0.109 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.287 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN, thread_length: 0.250 INCHES MINIMUM IN, screw_material: STEEL. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-637-8247, 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
PC453281
NSN: 5305-00-637-8247
FSC: 5305 — Screws
CAGE: C7432 — POWER COMPONENTS (DEUTSCHLAND) GMBH (DEU)
SPECIFICATIONS
head_styleROUND
head_height0.109 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.287 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN
thread_length0.250 INCHES MINIMUM IN
screw_materialSTEEL
fastener_length0.312 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.164 INCHES IN
screw_surface_treatmentCADMIUM
thread_quantity_per_inch32
NSN5305-00-637-8247
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PC453281 · 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: 0.109 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: CADMIUM
•
FASTENER LENGTH: 0.312 INCHES NOMINAL IN
•
THREAD LENGTH: 0.250 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
HEAD STYLE: ROUND
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.109 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTCADMIUM
FASTENER LENGTH0.312 INCHES NOMINAL IN
THREAD LENGTH0.250 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.164 INCHES IN
HEAD STYLEROUND
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL
INTERNAL DRIVE STYLESLOT
THREAD CLASS2A A
SUBSTITUTES & CROSS-REFERENCES 2
1553Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
453281Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is PC453281?
PC453281 is a SCREW,MACHINE.
What parts can replace PC453281?
There are 2 known substitutes for PC453281: 1553, 453281. Substitute compatibility should be verified for your specific system.
What is the NSN for PC453281?
PC453281 is cataloged in the U.S. Government catalog under NSN 5305-00-637-8247. 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.