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1-72NF3AX3-8 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1-72NF3AX3-8: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.070 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN, spline_width: 0.013 INCHES MINIMUM AND 0.014 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.114 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-040-9383, 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
1-72NF3AX3-8
NSN: 5305-00-040-9383
FSC: 5305 — Screws
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
head_height0.070 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
spline_width0.013 INCHES MINIMUM AND 0.014 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.114 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN
thread_length0.375 INCHES MAXIMUM IN
fastener_length0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentOXIDE OVERALL
internal_drive_styleSIX SPLINE
spline_major_diameter0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
NSN5305-00-040-9383
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1-72NF3AX3-8 · 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
•
SPLINE MINOR DIAMETER: 0.049 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.070 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
•
SPLINE WIDTH: 0.013 INCHES MINIMUM AND 0.014 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.375 INCHES MAXIMUM IN
•
SPLINE MAJOR DIAMETER: 0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.073 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
TECHNICAL CHARACTERISTICS
SPLINE MINOR DIAMETER0.049 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN
HEAD HEIGHT0.070 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
FASTENER LENGTH0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
SPLINE WIDTH0.013 INCHES MINIMUM AND 0.014 INCHES MAXIMUM IN
THREAD LENGTH0.375 INCHES MAXIMUM IN
SPLINE MAJOR DIAMETER0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.073 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTOXIDE OVERALL
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
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 1-72NF3AX3-8?
1-72NF3AX3-8 is a SCREW,CAP,SOCKET HEAD.
What is the NSN for 1-72NF3AX3-8?
1-72NF3AX3-8 is cataloged in the U.S. Government catalog under NSN 5305-00-040-9383. 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.