PartsTable
Technical Data Sheet
Download PDF

1277767 — BOLT,SQUARE NECK

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1277767: BOLT,SQUARE NECK.

The BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: OVAL, neck_width: 0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, head_height: 0.250 INCHES NOMINAL IN, neck_length: 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, thread_class: 2A A. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-734-6916, 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
1277767
NSN: 5306-00-734-6916
FSC: 5306 — Bolts
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleOVAL
neck_width0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
head_height0.250 INCHES NOMINAL IN
neck_length0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
thread_class2A A
head_diameter1.562 INCHES NOMINAL IN
thread_length1.500 INCHES MINIMUM IN
fastener_length2.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_diameter0.500 INCHES IN
NSN5306-00-734-6916
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1277767 · 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
•
NECK LENGTH: 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.750 INCHES NOMINAL IN
•
THREAD LENGTH: 1.500 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
HEAD STYLE: OVAL
•
THREAD DIRECTION: RIGHT-HAND
•
NECK WIDTH: 0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
NECK LENGTH0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
HEAD HEIGHT0.250 INCHES NOMINAL IN
FASTENER LENGTH2.750 INCHES NOMINAL IN
THREAD LENGTH1.500 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEOVAL
THREAD DIRECTIONRIGHT-HAND
NECK WIDTH0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A A
SUBSTITUTES & CROSS-REFERENCES 2
7346916Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
930811Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 1277767?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1277767?
1277767 is a BOLT,SQUARE NECK.
What parts can replace 1277767?
There are 2 known substitutes for 1277767: 7346916, 930811. Substitute compatibility should be verified for your specific system.
What is the NSN for 1277767?
1277767 is cataloged in the U.S. Government catalog under NSN 5306-00-734-6916. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1277767

✓ 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.