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3M977C5-4D6 — BOLT,EYE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3M977C5-4D6: BOLT,EYE.

The BOLT,EYE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 304 OVERALL, shank_length: 0.834 INCHES MINIMUM AND 0.854 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.469 INCHES NOMINAL IN, overall_length: 1.583 INCHES MINIMUM AND 1.603 INCHES MAXIMUM IN, style_designator: ROUND, CLOSED W/SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-195-4998, 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
3M977C5-4D6
NSN: 5306-01-195-4998
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 304 OVERALL
shank_length0.834 INCHES MINIMUM AND 0.854 INCHES MAXIMUM IN
thread_class3A A
thread_length0.469 INCHES NOMINAL IN
overall_length1.583 INCHES MINIMUM AND 1.603 INCHES MAXIMUM IN
style_designatorROUND, CLOSED W/SHOULDER
thread_directionRIGHT-HAND
eye_outside_width0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
shoulder_diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
shoulder_thickness0.068 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
eye_inside_diameter0.312 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN
NSN5306-01-195-4998
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3M977C5-4D6 · 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: 0.469 INCHES NOMINAL IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.066 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN
•
SHANK LENGTH: 0.834 INCHES MINIMUM AND 0.854 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROUND, CLOSED W/SHOULDER
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.469 INCHES NOMINAL IN
SHANK UNTHREADED HOLE DIAMETER0.066 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN
SHANK LENGTH0.834 INCHES MINIMUM AND 0.854 INCHES MAXIMUM IN
STYLE DESIGNATORROUND, CLOSED W/SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL
OVERALL LENGTH1.583 INCHES MINIMUM AND 1.603 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM CENTER OF EYE TO SHANK END1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM IN
SHOULDER DIAMETER0.490 INCHES MINIMUM AND 0.510 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 3M977C5-4D6?
3M977C5-4D6 is a BOLT,EYE.
What is the NSN for 3M977C5-4D6?
3M977C5-4D6 is cataloged in the U.S. Government catalog under NSN 5306-01-195-4998. 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.