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ST3M840-7D84 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ST3M840-7D84: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: SPLINE EXTENDED WASHER, head_height: 0.383 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.680 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-144-2192, 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
ST3M840-7D84
NSN: 5306-01-144-2192
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
head_styleSPLINE EXTENDED WASHER
head_height0.383 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
thread_class3A A
thread_length0.680 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length5.940 INCHES MINIMUM AND 5.970 INCHES MAXIMUM IN
shoulder_length5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.4677 INCHES MINIMUM AND 0.4682 INCHES MAXIMUM FIRST SHOULDER IN
surface_treatmentPASSIVATE OVERALL
head_minor_diameter0.514 INCHES MINIMUM AND 0.521 INCHES MAXIMUM IN
NSN5306-01-144-2192
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ST3M840-7D84 · 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
•
EXTENDED WASHER THICKNESS: 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.383 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
•
FASTENER LENGTH: 5.940 INCHES MINIMUM AND 5.970 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM FIRST SHOULDER IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 0.807 INCHES MINIMUM AND 0.817 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.4677 INCHES MINIMUM AND 0.4682 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.680 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
HEAD HEIGHT0.383 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
FASTENER LENGTH5.940 INCHES MINIMUM AND 5.970 INCHES MAXIMUM IN
SHOULDER LENGTH5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER0.807 INCHES MINIMUM AND 0.817 INCHES MAXIMUM IN
SHOULDER DIAMETER0.4677 INCHES MINIMUM AND 0.4682 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.680 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE 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 3
MB162-7D84Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
122916-7D84Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VS3190-7D84YReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST3M840-7D84?
ST3M840-7D84 is a BOLT,SHOULDER.
What parts can replace ST3M840-7D84?
There are 3 known substitutes for ST3M840-7D84: MB162-7D84, 122916-7D84, VS3190-7D84Y. Substitute compatibility should be verified for your specific system.
What is the NSN for ST3M840-7D84?
ST3M840-7D84 is cataloged in the U.S. Government catalog under NSN 5306-01-144-2192. 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.