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1668624-8 — BOLT,EYE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1668624-8: BOLT,EYE.

The BOLT,EYE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, shank_length: 3.594 INCHES MINIMUM AND 3.656 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM IN, overall_length: 6.015 INCHES MINIMUM AND 6.171 INCHES MAXIMUM IN, special_features: COLOR-LIGHT GRAY. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-053-9766, 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
1668624-8
NSN: 5306-01-053-9766
FSC: 5306 — Bolts
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
shank_length3.594 INCHES MINIMUM AND 3.656 INCHES MAXIMUM IN
thread_class2A A
thread_length1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM IN
overall_length6.015 INCHES MINIMUM AND 6.171 INCHES MAXIMUM IN
special_featuresCOLOR-LIGHT GRAY
style_designatorROUND, CLOSED W/SHOULDER
thread_directionRIGHT-HAND
eye_outside_width2.031 INCHES MINIMUM AND 2.093 INCHES MAXIMUM IN
shoulder_diameter0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
surface_treatmentZINC AND ENAMEL OVERALL
eye_stock_diameter0.438 INCHES NOMINAL IN
NSN5306-01-053-9766
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1668624-8 · 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: 0.438 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325 TY 2 CLASS 3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-E-15090 TY 2 CLASS 2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM IN
•
SHANK LENGTH: 3.594 INCHES MINIMUM AND 3.656 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROUND, CLOSED W/SHOULDER
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5083 COMP CW MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS
EYE STOCK DIAMETER0.438 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325 TY 2 CLASS 3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-E-15090 TY 2 CLASS 2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
THREAD LENGTH1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM IN
SHANK LENGTH3.594 INCHES MINIMUM AND 3.656 INCHES MAXIMUM IN
STYLE DESIGNATORROUND, CLOSED W/SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5083 COMP CW MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH6.015 INCHES MINIMUM AND 6.171 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM CENTER OF EYE TO SHANK END4.359 INCHES MINIMUM AND 4.515 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 1
766780-8Reference 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 1668624-8?
1668624-8 is a BOLT,EYE.
What parts can replace 1668624-8?
There is 1 known substitute for 1668624-8: 766780-8. Substitute compatibility should be verified for your specific system.
What is the NSN for 1668624-8?
1668624-8 is cataloged in the U.S. Government catalog under NSN 5306-01-053-9766. 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.