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5524990-3 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5524990-3: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.907 INCHES MINIMUM AND 0.967 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 2.500 INCHES NOMINAL IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-340-1093, 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
5524990-3
NSN: 5306-01-340-1093
FSC: 5306 — Bolts
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.907 INCHES MINIMUM AND 0.967 INCHES MAXIMUM IN
thread_class3A A
thread_length2.500 INCHES NOMINAL IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length5.410 INCHES MINIMUM AND 5.470 INCHES MAXIMUM IN
shoulder_length2.930 INCHES MINIMUM AND 2.950 INCHES MAXIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM FIRST SHOULDER IN
surface_treatmentZINC AND CHROMATE OVERALL
width_between_flats2.175 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
NSN5306-01-340-1093
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5524990-3 · 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: 0.907 INCHES MINIMUM AND 0.967 INCHES MAXIMUM IN
•
FASTENER LENGTH: 5.410 INCHES MINIMUM AND 5.470 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 2.930 INCHES MINIMUM AND 2.950 INCHES MAXIMUM FIRST SHOULDER IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER DIAMETER: 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 2.500 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE,GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.907 INCHES MINIMUM AND 0.967 INCHES MAXIMUM IN
FASTENER LENGTH5.410 INCHES MINIMUM AND 5.470 INCHES MAXIMUM IN
SHOULDER LENGTH2.930 INCHES MINIMUM AND 2.950 INCHES MAXIMUM FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH2.500 INCHES NOMINAL IN
SHOULDER SHAPEROUND FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONSAE,GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER1.500 INCHES IN
HEAD STYLEHEXAGON
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

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 5524990-3?
5524990-3 is a BOLT,SHOULDER.
What is the NSN for 5524990-3?
5524990-3 is cataloged in the U.S. Government catalog under NSN 5306-01-340-1093. 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.