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Technical Data Sheet
PartsTable / COMPONENT / 7767966
7767966 ✓ 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 STUD,SHOULDERED AND STEPPED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140, thread_length: 0.625 INCHES MINIMUM STUD THREAD IN, overall_length: 3.219 INCHES NOMINAL IN, hardness_rating: 29.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM, shoulder_length: 1.344 INCHES NOMINAL IN, style_designator: SHOULDERED AND STEPPED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-776-7966, 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
7767966
NSN: 5307-00-776-7966
FSC: 5307
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 4140
thread_length0.625 INCHES MINIMUM STUD THREAD IN
overall_length3.219 INCHES NOMINAL IN
hardness_rating29.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
shoulder_length1.344 INCHES NOMINAL IN
style_designatorSHOULDERED AND STEPPED
thread_directionRIGHT-HAND STUD THREAD
nominal_thread_size0.312 INCHES NUT THREAD IN
nut_end_shank_length0.375 INCHES NOMINAL IN
distance_across_flats0.500 INCHES NOMINAL IN
nut_end_shank_diameter0.312 INCHES NOMINAL IN
thread_pitch_diameters+0.2764 TO 0.2817 INCHES NUT THREAD IN
NSN5307-00-776-7966
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 7767966 · 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
•
NUT END SHANK DIAMETER: 0.312 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDERED AND STEPPED
•
THREAD SERIES DESIGNATOR: UNS STUD THREAD
•
HARDNESS RATING: 29.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
•
THREAD LENGTH: 0.625 INCHES MINIMUM STUD THREAD IN
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
DISTANCE ACROSS FLATS: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NUT END SHANK DIAMETER0.312 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDERED AND STEPPED
THREAD SERIES DESIGNATORUNS STUD THREAD
HARDNESS RATING29.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
THREAD LENGTH0.625 INCHES MINIMUM STUD THREAD IN
OVERALL LENGTH3.219 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
DISTANCE ACROSS FLATS0.500 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNS NUT THREAD
NOMINAL THREAD SIZE0.375 INCHES STUD THREAD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
ED-371Interchangeable
interchangeable cross-reference
interchangeable
PC444Interchangeable
interchangeable cross-reference
interchangeable
P-C-444 TY2Interchangeable
interchangeable cross-reference
interchangeable
P-C-444 TY1Interchangeable
interchangeable cross-reference
interchangeable
COREM S-1Interchangeable
interchangeable cross-reference
interchangeable
752-5765Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7767966?
7767966 is a STUD,SHOULDERED AND STEPPED.
What parts can replace 7767966?
There are 10 known substitutes for 7767966: ED-371, PC444, P-C-444 TY2 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7767966?
7767966 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-776-7966. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026