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Technical Data Sheet
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B3373-51 — BOLT,EYE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

B3373-51: BOLT,EYE.

The BOLT,EYE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-12 OVERALL, nut_style: ROUND, nut_diameter: 1.825 INCHES NOMINAL IN, shank_length: 1.734 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 0.300 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-560-1397, 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
B3373-51
NSN: 5306-00-560-1397
NIINs: 005601397, 013851301
FSC: 5306 — Bolts
CAGE: 29381 — GICHNER SYSTEMS GROUP, INC. DIV C5ISR DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP XM-12 OVERALL
nut_styleROUND
nut_diameter1.825 INCHES NOMINAL IN
shank_length1.734 INCHES NOMINAL IN
thread_class3B
nut_thickness0.300 INCHES NOMINAL IN
thread_length1.625 INCHES NOMINAL IN
thread_seriesUNJEF
overall_length2.766 INCHES NOMINAL IN
style_designatorROUND, CLOSED
thread_directionRIGHT-HAND
drive_point_depth0.075 INCHES NOMINAL IN
NSN5306-00-560-1397
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B3373-51 · 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: 0.312 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 1.625 INCHES NOMINAL IN
•
SHANK LENGTH: 1.734 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND, CLOSED
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
EYE STOCK DIAMETER0.312 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH1.625 INCHES NOMINAL IN
SHANK LENGTH1.734 INCHES NOMINAL IN
STYLE DESIGNATORROUND, CLOSED
OVERALL LENGTH2.766 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM CENTER OF EYE TO SHANK END2.250 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 B3373-51?
B3373-51 is a BOLT,EYE.
What is the NSN for B3373-51?
B3373-51 is cataloged in the U.S. Government catalog under NSN 5306-00-560-1397. 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.