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STD137A-1-0 — STUD,BALL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

STD137A-1-0: STUD,BALL.

The STUD,BALL is a the manufacturer industrial component. Key specifications include material: STEEL, head_diameter: 0.500 INCHES NOMINAL IN, overall_length: 1.750 INCHES NOMINAL IN, style_designator: BALL, end_item_identification: RUDDER INS KI, distance_from_spherical_head_centerline_to_head_end: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-471-8295, 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
STD137A-1-0
NSN: 5307-01-471-8295
FSC: 5307 — Studs
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL
head_diameter0.500 INCHES NOMINAL IN
overall_length1.750 INCHES NOMINAL IN
special_featuresITEM MAY HAVE A SPIRAL OR STRAIGHT TYPE OIL GROOVE INCORPORATED INTO THE SHANK, WITH A 0.060 MAX WIDTH; SHANK DIAMETER IS 0.3125 INCHES NOM. IN
style_designatorBALL
end_item_identificationRUDDER INS KI
distance_from_spherical_head_centerline_to_head_end0.250 INCHES NOMINAL IN
NSN5307-01-471-8295
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: STD137A-1-0 · 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
•
DISTANCE FROM SPHERICAL HEAD CENTERLINE TO HEAD END: 0.250 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
HEAD DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORBALL
OVERALL LENGTH1.750 INCHES NOMINAL IN
SPECIAL FEATURESITEM MAY HAVE A SPIRAL OR STRAIGHT TYPE OIL GROOVE INCORPORATED INTO THE SHANK, WITH A 0.060 MAX WIDTH; SHANK DIAMETER IS 0.3125 INCHES NOM. IN
DISTANCE FROM SPHERICAL HEAD CENTERLINE TO HEAD END0.250 INCHES NOMINAL IN
END ITEM IDENTIFICATIONRUDDER INS KI
MATERIALSTEEL
HEAD DIAMETER0.500 INCHES NOMINAL 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is STD137A-1-0?
STD137A-1-0 is a STUD,BALL.
What is the NSN for STD137A-1-0?
STD137A-1-0 is cataloged in the U.S. Government catalog under NSN 5307-01-471-8295. 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.