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03A217-3-18 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

03A217-3-18: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: HEXAGON, head_height: 0.153 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.338 INCHES NOMINAL IN, shoulder_shape: ROUND OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-571-9478, 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
03A217-3-18
NSN: 5306-01-571-9478
FSC: 5306 — Bolts
CAGE: 1W025 — NORTHROP GRUMMAN SYSTEMS CORP DBA NORTHROP GRUMMAN COMPUTING SYSTEMS (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
head_styleHEXAGON
head_height0.153 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN
thread_class3A A
thread_length0.338 INCHES NOMINAL IN
shoulder_shapeROUND OVERALL
fastener_length1.463 INCHES NOMINAL IN
shoulder_length1.463 INCHES NOMINAL OVERALL IN
thread_directionRIGHT-HAND
shoulder_diameter0.249 INCHES NOMINAL OVERALL IN
surface_treatmentPASSIVATE OVERALL
width_between_flats0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
NSN5306-01-571-9478
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 03A217-3-18 · 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: 0.153 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.463 INCHES NOMINAL IN
•
SHOULDER LENGTH: 1.463 INCHES NOMINAL OVERALL IN
•
SHOULDER DIAMETER: 0.249 INCHES NOMINAL OVERALL IN
•
THREAD LENGTH: 0.338 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.153 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN
FASTENER LENGTH1.463 INCHES NOMINAL IN
SHOULDER LENGTH1.463 INCHES NOMINAL OVERALL IN
SHOULDER DIAMETER0.249 INCHES NOMINAL OVERALL IN
THREAD LENGTH0.338 INCHES NOMINAL IN
SHOULDER SHAPEROUND OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
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 03A217-3-18?
03A217-3-18 is a BOLT,SHOULDER.
What is the NSN for 03A217-3-18?
03A217-3-18 is cataloged in the U.S. Government catalog under NSN 5306-01-571-9478. 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.