PartsTable
Technical Data Sheet
Download PDF

J644P14B — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

J644P14B: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, hole_type: DRILLED, head_style: DOUBLE HEXAGON EXTENDED WASHER, grip_length: 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, head_height: 0.293 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN, thread_class: 3A A. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-188-9360, 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
J644P14B
NSN: 5306-01-188-9360
FSC: 5306 — Bolts
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
hole_typeDRILLED
head_styleDOUBLE HEXAGON EXTENDED WASHER
grip_length0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
head_height0.293 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.075 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
hole_quantity2
thread_length0.740 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES GRIP
fastener_length1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
NSN5306-01-188-9360
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: J644P14B · 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
•
SURFACE FINISH: 32.0 MICROINCHES THREADS
•
EXTENDED WASHER THICKNESS: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.293 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.740 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
•
HOLE CONFIGURATION STYLE: DOUBLE HEXAGON FLATS
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES GRIP
EXTENDED WASHER THICKNESS0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
HEAD HEIGHT0.293 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
FASTENER LENGTH1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
THREAD LENGTH0.740 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
HOLE CONFIGURATION STYLEDOUBLE HEXAGON FLATS
NOMINAL THREAD DIAMETER0.250 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
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
J644P14BQQSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy J644P14B?
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 J644P14B?
J644P14B is a BOLT,MACHINE.
What parts can replace J644P14B?
There is 1 known substitute for J644P14B: J644P14BQQ. Substitute compatibility should be verified for your specific system.
What is the NSN for J644P14B?
J644P14B is cataloged in the U.S. Government catalog under NSN 5306-01-188-9360. 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 — J644P14B

✓ 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.