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L4100020-003 — STUD,BALL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

L4100020-003: STUD,BALL.

The STUD,BALL is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718, thread_class: 3B LOCATION NOT OTHERWISE SPECIFIED, head_diameter: 2.247 INCHES NOMINAL IN, neck_diameter: 1.400 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN, overall_length: 2.350 INCHES NOMINAL IN, special_features: SIX SLOTS,EQUALLY SPACED,0.250 IN. WD,0.116 IN.

DP ON HEX END IN. This part is cataloged in the U.S. Government catalog under NSN 5307-01-178-9141, 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
L4100020-003
NSN: 5307-01-178-9141
FSC: 5307 — Studs
CAGE: 43999 — THE BOEING COMPANY DIV LEGACY AM&M (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718
thread_class3B LOCATION NOT OTHERWISE SPECIFIED
head_diameter2.247 INCHES NOMINAL IN
neck_diameter1.400 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN
overall_length2.350 INCHES NOMINAL IN
special_featuresSIX SLOTS,EQUALLY SPACED,0.250 IN. WD,0.116 IN. DP ON HEX END IN
style_designatorBALL
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
nominal_thread_size1.375 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
distance_across_flats1.750 INCHES NOMINAL IN
thread_quantity_per_inch12 LOCATION NOT OTHERWISE SPECIFIED
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) LOCATION NOT OTHERWISE SPECIFIED
NSN5307-01-178-9141
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: L4100020-003 · 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
•
STYLE DESIGNATOR: BALL
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
NOMINAL THREAD SIZE: 1.375 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
•
DISTANCE FROM SPHERICAL HEAD CENTERLINE TO HEAD END: 0.780 INCHES NOMINAL IN
•
THREAD CLASS: 3B LOCATION NOT OTHERWISE SPECIFIED
•
THREAD QUANTITY PER INCH: 12 LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORBALL
OVERALL LENGTH2.350 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
NOMINAL THREAD SIZE1.375 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
SPECIAL FEATURESSIX SLOTS,EQUALLY SPACED,0.250 IN. WD,0.116 IN. DP ON HEX END IN
DISTANCE FROM SPHERICAL HEAD CENTERLINE TO HEAD END0.780 INCHES NOMINAL IN
THREAD CLASS3B LOCATION NOT OTHERWISE SPECIFIED
THREAD QUANTITY PER INCH12 LOCATION NOT OTHERWISE SPECIFIED
MATERIALNICKEL ALLOY 718
NECK DIAMETER1.400 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 L4100020-003?
L4100020-003 is a STUD,BALL.
What is the NSN for L4100020-003?
L4100020-003 is cataloged in the U.S. Government catalog under NSN 5307-01-178-9141. 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.