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12330573 — BOLT,EYE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12330573: BOLT,EYE.

The BOLT,EYE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4142 OR STEEL COMP 4140 OR STEEL COMP 4130 OVERALL, shank_length: 4.120 INCHES NOMINAL IN, thread_length: 4.120 INCHES NOMINAL IN, overall_length: 5.620 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, eye_outside_width: 1.380 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-161-7690, 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
12330573
NSN: 5306-01-161-7690
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 4142 OR STEEL COMP 4140 OR STEEL COMP 4130 OVERALL
shank_length4.120 INCHES NOMINAL IN
thread_length4.120 INCHES NOMINAL IN
overall_length5.620 INCHES NOMINAL IN
thread_directionRIGHT-HAND
eye_outside_width1.380 INCHES NOMINAL IN
shoulder_diameter0.060 INCHES NOMINAL IN
eye_stock_diameter0.620 INCHES NOMINAL IN
eye_inside_diameter0.625 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
distance_from_center_of_eye_to_shank_end5.000 INCHES NOMINAL IN
NSN5306-01-161-7690
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12330573 · 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: 0.620 INCHES NOMINAL IN
•
THREAD LENGTH: 4.120 INCHES NOMINAL IN
•
SHANK LENGTH: 4.120 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
DISTANCE FROM CENTER OF EYE TO SHANK END: 5.000 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 0.060 INCHES NOMINAL IN
•
EYE INSIDE DIAMETER: 0.625 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
EYE STOCK DIAMETER0.620 INCHES NOMINAL IN
THREAD LENGTH4.120 INCHES NOMINAL IN
SHANK LENGTH4.120 INCHES NOMINAL IN
OVERALL LENGTH5.620 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM CENTER OF EYE TO SHANK END5.000 INCHES NOMINAL IN
SHOULDER DIAMETER0.060 INCHES NOMINAL IN
EYE INSIDE DIAMETER0.625 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
MATERIALSTEEL COMP 4142 OR STEEL COMP 4140 OR STEEL COMP 4130 OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
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 2
BML42876Reference document
Same NSN cross-reference
Reference document — Secondary reference
35313(MODIFIED)Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 12330573?
12330573 is a BOLT,EYE.
What parts can replace 12330573?
There are 2 known substitutes for 12330573: BML42876, 35313(MODIFIED). Substitute compatibility should be verified for your specific system.
What is the NSN for 12330573?
12330573 is cataloged in the U.S. Government catalog under NSN 5306-01-161-7690. 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.