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AKS4-420-260 — INSERT,SCREW THREAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

AKS4-420-260: INSERT,SCREW THREAD.

The INSERT,SCREW THREAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1008 OVERALL, thread_class: 2B, flange_diameter: 0.398 INCHES NOMINAL IN, flange_thickness: 0.022 INCHES NOMINAL IN, style_designator: SERRATED, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-548-2516, 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
AKS4-420-260
NSN: 5325-01-548-2516
FSC: 5325 — Fastening Devices
CAGE: 78276 — AVK INDUSTRIES PRODUCTS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1008 OVERALL
thread_class2B
flange_diameter0.398 INCHES NOMINAL IN
flange_thickness0.022 INCHES NOMINAL IN
style_designatorSERRATED
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
nominal_thread_size0.250 INCHES IN
end_item_identification2320-01-518-7330; TRUCK, UTILITY
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
part_name_assigned_by_controlling_agencyINSERT
NSN5325-01-548-2516
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AKS4-420-260 · 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
•
FLANGE DIAMETER: 0.398 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.022 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SERRATED
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
SURFACE TREATMENT: ZINC OVERALL
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER0.398 INCHES NOMINAL IN
FLANGE THICKNESS0.022 INCHES NOMINAL IN
STYLE DESIGNATORSERRATED
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYINSERT
THREAD CLASS2B
END ITEM IDENTIFICATION2320-01-518-7330; TRUCK, UTILITY
THREAD QUANTITY PER INCH20
SUBSTITUTES & CROSS-REFERENCES 1
12446871Reference 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
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FREQUENTLY ASKED QUESTIONS
What is AKS4-420-260?
AKS4-420-260 is a INSERT,SCREW THREAD.
What parts can replace AKS4-420-260?
There is 1 known substitute for AKS4-420-260: 12446871. Substitute compatibility should be verified for your specific system.
What is the NSN for AKS4-420-260?
AKS4-420-260 is cataloged in the U.S. Government catalog under NSN 5325-01-548-2516. 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.