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9174638 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

9174638: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: FLAT CHAMFER, head_height: 0.031 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN, thread_length: 0.449 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-206-2457, 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
9174638
NSN: 5306-01-206-2457
FSC: 5306 — Bolts
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_styleFLAT CHAMFER
head_height0.031 INCHES NOMINAL IN
thread_class2A A
head_diameter0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN
thread_length0.449 INCHES NOMINAL IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length0.574 INCHES NOMINAL IN
shoulder_length0.125 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.123 INCHES NOMINAL FIRST SHOULDER IN
surface_treatmentPASSIVATE OVERALL
NSN5306-01-206-2457
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 9174638 · 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: 0.031 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.574 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.125 INCHES NOMINAL FIRST SHOULDER IN
•
SHOULDER DIAMETER: 0.123 INCHES NOMINAL FIRST SHOULDER IN
•
THREAD LENGTH: 0.449 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.031 INCHES NOMINAL IN
FASTENER LENGTH0.574 INCHES NOMINAL IN
SHOULDER LENGTH0.125 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER DIAMETER0.123 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH0.449 INCHES NOMINAL IN
SHOULDER SHAPEROUND FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9174638?
9174638 is a BOLT,SHOULDER.
What is the NSN for 9174638?
9174638 is cataloged in the U.S. Government catalog under NSN 5306-01-206-2457. 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.