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6404642 FIND 16 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6404642 FIND 16: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 OVERALL, head_style: HEXAGON, head_height: 0.226 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.000 INCHES NOMINAL IN, fastener_length: 1.210 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-459-4619, 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
6404642 FIND 16
NSN: 5306-01-459-4619
FSC: 5306 — Bolts
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OVERALL
head_styleHEXAGON
head_height0.226 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN
thread_class2A A
thread_length1.000 INCHES NOMINAL IN
fastener_length1.210 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
special_featuresSELF-LOCKING
thread_directionRIGHT-HAND
width_between_flats0.544 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch16
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5306-01-459-4619
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6404642 FIND 16 · 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: 0.226 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.210 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
•
THREAD LENGTH: 1.000 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CL-A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.544 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.226 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN
FASTENER LENGTH1.210 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
THREAD LENGTH1.000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL-A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.544 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
SPECIAL FEATURESSELF-LOCKING
THREAD CLASS2A A
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 1
595-6404642 FIND 12Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 6404642 FIND 16?
6404642 FIND 16 is a BOLT,MACHINE.
What parts can replace 6404642 FIND 16?
There is 1 known substitute for 6404642 FIND 16: 595-6404642 FIND 12. Substitute compatibility should be verified for your specific system.
What is the NSN for 6404642 FIND 16?
6404642 FIND 16 is cataloged in the U.S. Government catalog under NSN 5306-01-459-4619. 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.