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Technical Data Sheet
PartsTable / COMPONENT / 2221 1-4X2
2221 1-4X2 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The BOLT,EYE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, shank_length: 2.000 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.750 INCHES MINIMUM IN, overall_length: 3.125 INCHES NOMINAL IN, special_features: FURNISHED W/ONE HEX. NUT.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-993-4370, 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
2221 1-4X2
NSN: 5306-00-993-4370
FSC: 5306
CAGE: 79577 — NORTH AND JUDD INC WILCOX-CRITTENDEN DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
shank_length2.000 INCHES NOMINAL IN
thread_class2A A
thread_length0.750 INCHES MINIMUM IN
overall_length3.125 INCHES NOMINAL IN
special_featuresFURNISHED W/ONE HEX. NUT
style_designatorROUND, CLOSED W/SHOULDER
thread_directionRIGHT-HAND
eye_outside_width1.000 INCHES NOMINAL IN
shoulder_diameter0.406 INCHES NOMINAL IN
surface_treatmentZINC OVERALL
eye_stock_diameter0.250 INCHES NOMINAL IN
NSN5306-00-993-4370
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2221 1-4X2 · 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
•
THREAD LENGTH: 0.750 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
EYE OUTSIDE WIDTH: 1.000 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
SHANK LENGTH: 2.000 INCHES NOMINAL IN
•
EYE STOCK DIAMETER: 0.250 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 20
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.750 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
EYE OUTSIDE WIDTH1.000 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
SHANK LENGTH2.000 INCHES NOMINAL IN
EYE STOCK DIAMETER0.250 INCHES NOMINAL IN
THREAD QUANTITY PER INCH20
THREAD CLASS2A A
EYE INSIDE DIAMETER0.500 INCHES NOMINAL IN
SPECIAL FEATURESFURNISHED W/ONE HEX. NUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
2221Upgraded Successor
successor cross-reference
successor
1222Upgraded Successor
successor cross-reference
successor
3018-01Upgraded Successor
successor cross-reference
successor
6T6K X USAUpgraded Successor
successor cross-reference
successor
FF-H-1819Upgraded Successor
successor cross-reference
successor
940Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2221 1-4X2?
2221 1-4X2 is a BOLT,EYE.
What parts can replace 2221 1-4X2?
There are 6 known substitutes for 2221 1-4X2: 2221, 1222, 3018-01 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2221 1-4X2?
2221 1-4X2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-993-4370. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026