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A51K61587-11 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A51K61587-11: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include head_style: CROWNED HEXAGON, head_height: 0.320 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.375 INCHES NOMINAL IN, shoulder_shape: ROUND ALL SHOULDERS, fastener_length: 3.430 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-047-6923, 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
A51K61587-11
NSN: 5306-01-047-6923
FSC: 5306 — Bolts
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
head_styleCROWNED HEXAGON
head_height0.320 INCHES NOMINAL IN
thread_class3A A
thread_length0.375 INCHES NOMINAL IN
shoulder_shapeROUND ALL SHOULDERS
fastener_length3.430 INCHES NOMINAL IN
shoulder_length2.498 INCHES NOMINAL SECOND SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.200 INCHES MINIMUM AND 0.202 INCHES MAXIMUM SECOND SHOULDER IN
surface_treatmentPASSIVATE OVERALL
width_between_flats0.265 INCHES NOMINAL IN
nominal_thread_diameter0.190 INCHES IN
NSN5306-01-047-6923
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A51K61587-11 · 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: 0.320 INCHES NOMINAL IN
•
FASTENER LENGTH: 3.430 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.492 INCHES NOMINAL FIRST SHOULDER IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER DIAMETER: 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.320 INCHES NOMINAL IN
FASTENER LENGTH3.430 INCHES NOMINAL IN
SHOULDER LENGTH0.492 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER LENGTH2.498 INCHES NOMINAL SECOND SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM FIRST SHOULDER IN
SHOULDER DIAMETER0.200 INCHES MINIMUM AND 0.202 INCHES MAXIMUM SECOND SHOULDER IN
THREAD LENGTH0.375 INCHES NOMINAL IN
SHOULDER SHAPEROUND ALL SHOULDERS
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5659 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A51K61587-11?
A51K61587-11 is a BOLT,SHOULDER.
What is the NSN for A51K61587-11?
A51K61587-11 is cataloged in the U.S. Government catalog under NSN 5306-01-047-6923. This indicates validated use in U.S. government and defense supply chains.
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