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1940B4812 — BOLT,EYE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1940B4812: BOLT,EYE.

The BOLT,EYE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, shank_length: 0.670 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.670 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN, overall_length: 2.980 INCHES MINIMUM AND 3.280 INCHES MAXIMUM IN, style_designator: ROUND, CLOSED W/SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-077-7097, 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
1940B4812
NSN: 5306-01-077-7097
FSC: 5306 — Bolts
CAGE: 21877 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
shank_length0.670 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN
thread_class2A A
thread_length0.670 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN
overall_length2.980 INCHES MINIMUM AND 3.280 INCHES MAXIMUM IN
style_designatorROUND, CLOSED W/SHOULDER
thread_directionRIGHT-HAND
eye_outside_width2.120 INCHES NOMINAL IN
shoulder_diameter0.880 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN
surface_treatmentZINC OVERALL
eye_stock_diameter0.440 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
shoulder_thickness0.190 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
NSN5306-01-077-7097
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1940B4812 · 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: 0.440 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TYPE 1,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.670 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN
•
SHANK LENGTH: 0.670 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROUND, CLOSED W/SHOULDER
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-45908 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS
EYE STOCK DIAMETER0.440 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TYPE 1,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.670 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN
SHANK LENGTH0.670 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN
STYLE DESIGNATORROUND, CLOSED W/SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-45908 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH2.980 INCHES MINIMUM AND 3.280 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM CENTER OF EYE TO SHANK END1.950 INCHES MINIMUM AND 2.185 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1940B4812?
1940B4812 is a BOLT,EYE.
What is the NSN for 1940B4812?
1940B4812 is cataloged in the U.S. Government catalog under NSN 5306-01-077-7097. 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.