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123CSM10318-511 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

123CSM10318-511: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_type: DRILLED, head_style: DISHED HEXAGON, head_height: 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN, thread_class: 3A A, hole_diameter: 0.069 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-206-0095, 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
123CSM10318-511
NSN: 5306-01-206-0095
FSC: 5306 — Bolts
CAGE: 70974 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
head_styleDISHED HEXAGON
head_height0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.069 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
hole_quantity3
thread_length0.354 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length3.160 INCHES NOMINAL IN
shoulder_length2.730 INCHES MINIMUM AND 2.735 INCHES MAXIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
NSN5306-01-206-0095
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 123CSM10318-511 · 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: 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN
•
FASTENER LENGTH: 3.160 INCHES NOMINAL IN
•
SHOULDER LENGTH: 2.730 INCHES MINIMUM AND 2.735 INCHES MAXIMUM FIRST SHOULDER IN
•
SHOULDER DIAMETER: 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.354 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
HOLE CONFIGURATION STYLE: HEXAGON FLATS
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN
FASTENER LENGTH3.160 INCHES NOMINAL IN
SHOULDER LENGTH2.730 INCHES MINIMUM AND 2.735 INCHES MAXIMUM FIRST SHOULDER IN
SHOULDER DIAMETER0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.354 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
HOLE CONFIGURATION STYLEHEXAGON FLATS
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEDISHED HEXAGON
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 1
123CSM10318-511REVHReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 123CSM10318-511?
123CSM10318-511 is a BOLT,SHOULDER.
What parts can replace 123CSM10318-511?
There is 1 known substitute for 123CSM10318-511: 123CSM10318-511REVH. Substitute compatibility should be verified for your specific system.
What is the NSN for 123CSM10318-511?
123CSM10318-511 is cataloged in the U.S. Government catalog under NSN 5306-01-206-0095. 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.