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4AK83 — SCREW,TAPPING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4AK83: SCREW,TAPPING.

The SCREW,TAPPING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, thread_direction: RIGHT-HAND, part_name_assigned_by_controlling_agency: HEX WASHER SLOTTED CONCRETE SCREW. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-586-7947, 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
4AK83
NSN: 5305-01-586-7947
NIINs: 015867947, 016934844
FSC: 5305 — Screws
CAGE: 4M876 — GRAINGER DIV OF W W GRAINGER INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
thread_directionRIGHT-HAND
part_name_assigned_by_controlling_agencyHEX WASHER SLOTTED CONCRETE SCREW
NSN5305-01-586-7947
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4AK83 · 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.187 INCHES IN
•
FASTENER LENGTH: 2.250 INCHES NOMINAL IN
•
NONMACHINE THREAD STYLE: CONE POINT (TYPE BP)
•
HEAD STYLE: HEXAGON EXTENDED WASHER
TECHNICAL CHARACTERISTICS
NONMACHINE NOMINAL THREAD DIAMETER0.187 INCHES IN
FASTENER LENGTH2.250 INCHES NOMINAL IN
NONMACHINE THREAD STYLECONE POINT (TYPE BP)
HEAD STYLEHEXAGON EXTENDED WASHER
PART NAME ASSIGNED BY CONTROLLING AGENCYRED HEAD MASONRY SCREW,HEX
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 4AK83?
4AK83 is a SCREW,TAPPING.
What is the NSN for 4AK83?
4AK83 is cataloged in the U.S. Government catalog under NSN 5305-01-586-7947. 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.