PartsTable
Technical Data Sheet
Download PDF

3221001 — BOLT,EYE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3221001: BOLT,EYE.

The BOLT,EYE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, shank_length: 1.750 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.750 INCHES MINIMUM IN, overall_length: 4.500 INCHES NOMINAL IN, style_designator: ROUND, CLOSED W/SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-207-5403, 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
3221001
NSN: 5306-00-207-5403
FSC: 5306 — Bolts
CAGE: 55380 — HATCH & KIRK, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
shank_length1.750 INCHES NOMINAL IN
thread_class2A A
thread_length1.750 INCHES MINIMUM IN
overall_length4.500 INCHES NOMINAL IN
style_designatorROUND, CLOSED W/SHOULDER
thread_directionRIGHT-HAND
eye_outside_width2.500 INCHES NOMINAL IN
eye_stock_diameter0.625 INCHES NOMINAL IN
eye_inside_diameter1.375 INCHES NOMINAL IN
nominal_thread_diameter0.625 INCHES IN
thread_quantity_per_inch11
NSN5306-00-207-5403
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3221001 · 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
•
EYE STOCK DIAMETER: 0.625 INCHES NOMINAL IN
•
THREAD LENGTH: 1.750 INCHES MINIMUM IN
•
SHANK LENGTH: 1.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND, CLOSED W/SHOULDER
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
DISTANCE FROM CENTER OF EYE TO SHANK END: 3.187 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
EYE STOCK DIAMETER0.625 INCHES NOMINAL IN
THREAD LENGTH1.750 INCHES MINIMUM IN
SHANK LENGTH1.750 INCHES NOMINAL IN
STYLE DESIGNATORROUND, CLOSED W/SHOULDER
OVERALL LENGTH4.500 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.625 INCHES IN
THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM CENTER OF EYE TO SHANK END3.187 INCHES NOMINAL IN
EYE INSIDE DIAMETER1.375 INCHES NOMINAL IN
THREAD CLASS2A A
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
SUBSTITUTES & CROSS-REFERENCES 1
5-8X11X1 1-8LGReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 3221001?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 3221001?
3221001 is a BOLT,EYE.
What parts can replace 3221001?
There is 1 known substitute for 3221001: 5-8X11X1 1-8LG. Substitute compatibility should be verified for your specific system.
What is the NSN for 3221001?
3221001 is cataloged in the U.S. Government catalog under NSN 5306-00-207-5403. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 3221001

✓ 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.