PartsTable
Technical Data Sheet
Download PDF

A-445-111PC78 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A-445-111PC78: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 2A A, fastener_length: 2.250 INCHES NOMINAL IN, special_features: MATERIAL CLASS 2, thread_direction: RIGHT-HAND, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-668-9284, 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
A-445-111PC78
NSN: 5305-01-668-9284
FSC: 5305 — Screws
CAGE: 51802 — HANSOME ENERGY SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A A
fastener_length2.250 INCHES NOMINAL IN
special_featuresMATERIAL CLASS 2
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
nominal_thread_diameter0.625 INCHES IN
thread_quantity_per_inch11
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
part_name_assigned_by_controlling_agencySCREW, CAP SOCKET HEAD
NSN5305-01-668-9284
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A-445-111PC78 · 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
•
FASTENER LENGTH: 2.250 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
SURFACE TREATMENT: ZINC OVERALL
•
THREAD CLASS: 2A A
•
THREAD QUANTITY PER INCH: 11
TECHNICAL CHARACTERISTICS
FASTENER LENGTH2.250 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.625 INCHES IN
THREAD DIRECTIONRIGHT-HAND
SPECIAL FEATURESMATERIAL CLASS 2
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW, CAP SOCKET HEAD
THREAD CLASS2A A
THREAD QUANTITY PER INCH11
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SUBSTITUTES & CROSS-REFERENCES 1
A-445-111Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy A-445-111PC78?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is A-445-111PC78?
A-445-111PC78 is a SCREW,CAP,SOCKET HEAD.
What parts can replace A-445-111PC78?
There is 1 known substitute for A-445-111PC78: A-445-111. Substitute compatibility should be verified for your specific system.
What is the NSN for A-445-111PC78?
A-445-111PC78 is cataloged in the U.S. Government catalog under NSN 5305-01-668-9284. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — A-445-111PC78

✓ 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.