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Technical Data Sheet
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1855403-3 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1855403-3: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: HEXAGON, head_height: 0.563 INCHES NOMINAL IN, thread_length: 1.312 INCHES NOMINAL IN, shoulder_shape: ROUND FIRST SHOULDER, fastener_length: 3.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-067-2415, 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
1855403-3
NSN: 5306-01-067-2415
FSC: 5306 — Bolts
CAGE: 03956 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_styleHEXAGON
head_height0.563 INCHES NOMINAL IN
thread_length1.312 INCHES NOMINAL IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length3.500 INCHES NOMINAL IN
shoulder_length2.062 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_between_flats1.302 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
nominal_thread_diameter0.875 INCHES IN
thread_quantity_per_inch14
NSN5306-01-067-2415
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1855403-3 · 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
•
HEAD HEIGHT: 0.563 INCHES NOMINAL IN
•
FASTENER LENGTH: 3.500 INCHES NOMINAL IN
•
SHOULDER LENGTH: 2.062 INCHES NOMINAL FIRST SHOULDER IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: -69510,FINISH NO. 29 MIL STD ALL TREATMENT RESPONSES OVERALL
•
THREAD LENGTH: 1.312 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
MATERIAL DOCUMENT AND CLASSIFICATION: 87-004-04 MFR REF ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD DIAMETER: 0.875 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.563 INCHES NOMINAL IN
FASTENER LENGTH3.500 INCHES NOMINAL IN
SHOULDER LENGTH2.062 INCHES NOMINAL FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION-69510,FINISH NO. 29 MIL STD ALL TREATMENT RESPONSES OVERALL
THREAD LENGTH1.312 INCHES NOMINAL IN
SHOULDER SHAPEROUND FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATION87-004-04 MFR REF ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.875 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1855403-3?
1855403-3 is a BOLT,SHOULDER.
What is the NSN for 1855403-3?
1855403-3 is cataloged in the U.S. Government catalog under NSN 5306-01-067-2415. This indicates validated use in U.S. government and defense supply chains.
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