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453281 — MICROCIRCUIT,DIGITAL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

453281: MICROCIRCUIT,DIGITAL.

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include body_width: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, head_style: ROUND, body_height: 0.185 INCHES MAXIMUM IN, body_length: 0.840 INCHES MAXIMUM IN, head_height: 0.109 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN, thread_class: 2A A. 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
453281
NSN: 5305-00-637-8247
NIINs: 006378247, 011060871
FSC: 5305 — Screws
CAGE: 72582 — ROLLS-ROYCE SOLUTIONS AMERICA INC (USA)
SPECIFICATIONS
body_width0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
head_styleROUND
body_height0.185 INCHES MAXIMUM IN
body_length0.840 INCHES MAXIMUM IN
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
memory_capacityUNKNOWN
thread_directionRIGHT-HAND
NSN5305-00-637-8247
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 453281 · 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
PC453281Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 453281?
453281 is a MICROCIRCUIT,DIGITAL.
What parts can replace 453281?
There are 2 known substitutes for 453281: 1553, PC453281. Substitute compatibility should be verified for your specific system.
What is the NSN for 453281?
453281 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.