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1P9956 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1P9956: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: DEE CHAMFER, head_height: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.901 INCHES MINIMUM AND 0.911 INCHES MAXIMUM IN, thread_length: 0.670 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-497-0342, 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
1P9956
NSN: 5306-00-497-0342
FSC: 5306 — Bolts
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleDEE CHAMFER
head_height0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.901 INCHES MINIMUM AND 0.911 INCHES MAXIMUM IN
thread_length0.670 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length2.910 INCHES MINIMUM AND 2.950 INCHES MAXIMUM IN
hardness_rating39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length1.910 INCHES MINIMUM AND 1.950 INCHES MINIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.504 INCHES MINIMUM AND 0.505 INCHES MINIMUM FIRST SHOULDER IN
NSN5306-00-497-0342
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1P9956 · 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: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.910 INCHES MINIMUM AND 2.950 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 1.910 INCHES MINIMUM AND 1.950 INCHES MINIMUM FIRST SHOULDER IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.292 INCHES MINIMUM AND 0.302 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.504 INCHES MINIMUM AND 0.505 INCHES MINIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.670 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
HARDNESS RATING: 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
FASTENER LENGTH2.910 INCHES MINIMUM AND 2.950 INCHES MAXIMUM IN
SHOULDER LENGTH1.910 INCHES MINIMUM AND 1.950 INCHES MINIMUM FIRST SHOULDER IN
DISTANCE FROM CENTERLINE TO FLAT0.292 INCHES MINIMUM AND 0.302 INCHES MAXIMUM IN
SHOULDER DIAMETER0.504 INCHES MINIMUM AND 0.505 INCHES MINIMUM FIRST SHOULDER IN
THREAD LENGTH0.670 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEDEE CHAMFER
SUBSTITUTES & CROSS-REFERENCES 2
5S6069Reference document
Same NSN cross-reference
Reference document — Secondary reference
1P9956-00Reference 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 1P9956?
1P9956 is a BOLT,SHOULDER.
What parts can replace 1P9956?
There are 2 known substitutes for 1P9956: 5S6069, 1P9956-00. Substitute compatibility should be verified for your specific system.
What is the NSN for 1P9956?
1P9956 is cataloged in the U.S. Government catalog under NSN 5306-00-497-0342. 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.