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64421 — ADAPTER SET,CONNECTOR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

64421: ADAPTER SET,CONNECTOR.

The ADAPTER SET,CONNECTOR is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, fastener_length: 0.094 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, internal_drive_style: SLOT, nominal_thread_diameter: 0.060 INCHES IN, thread_quantity_per_inch: 80. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-173-8384, 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
64421
NSN: 5305-00-173-8384
NIINs: 001738384, 009491790, 012970070, 015943702
FSC: 5305 — Screws
CAGE: 73734 — FEDERAL SCREW PRODUCTS, INC. (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
fastener_length0.094 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.060 INCHES IN
thread_quantity_per_inch80
thread_series_designatorUNF
NSN5305-00-173-8384
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 64421 · 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: 0.094 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.060 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
INTERNAL DRIVE STYLE: SLOT
•
THREAD QUANTITY PER INCH: 80
•
THREAD SERIES DESIGNATOR: UNF
TECHNICAL CHARACTERISTICS
FASTENER LENGTH0.094 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.060 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
INTERNAL DRIVE STYLESLOT
THREAD QUANTITY PER INCH80
THREAD SERIES DESIGNATORUNF
SUBSTITUTES & CROSS-REFERENCES 1
64421ADXReference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 64421?
64421 is a ADAPTER SET,CONNECTOR.
What parts can replace 64421?
There is 1 known substitute for 64421: 64421ADX. Substitute compatibility should be verified for your specific system.
What is the NSN for 64421?
64421 is cataloged in the U.S. Government catalog under NSN 5305-00-173-8384. 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.