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A51C43506-13 — BOLT,INTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A51C43506-13: BOLT,INTERNALLY RELIEVED BODY.

The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 OVERALL, head_style: HEXAGON, head_height: 0.140 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.388 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN, fastener_length: 3.054 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-006-4597, 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
A51C43506-13
NSN: 5306-00-006-4597
FSC: 5306 — Bolts
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 410 OVERALL
head_styleHEXAGON
head_height0.140 INCHES NOMINAL IN
thread_class3A A
thread_length0.388 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
fastener_length3.054 INCHES NOMINAL IN
hardness_rating39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length2.675 INCHES MINIMUM AND 2.685 INCHES MAXIMUM IN
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
shoulder_diameter0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
NSN5306-00-006-4597
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A51C43506-13 · 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: 0.140 INCHES NOMINAL IN
•
FASTENER LENGTH: 3.054 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONCENTRIC HOLE DEPTH: 2.500 INCHES NOMINAL IN
•
THREAD LENGTH: 0.388 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
•
HARDNESS RATING: 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
•
SHANK UNTHREADED HOLE DIAMETER: 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE IN
•
STYLE DESIGNATOR: CONCENTRIC HOLE UNTHREADED
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.140 INCHES NOMINAL IN
FASTENER LENGTH3.054 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CONCENTRIC HOLE DEPTH2.500 INCHES NOMINAL IN
THREAD LENGTH0.388 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE IN
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEHEXAGON
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
SUBSTITUTES & CROSS-REFERENCES 1
A51C43506Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A51C43506-13?
A51C43506-13 is a BOLT,INTERNALLY RELIEVED BODY.
What parts can replace A51C43506-13?
There is 1 known substitute for A51C43506-13: A51C43506. Substitute compatibility should be verified for your specific system.
What is the NSN for A51C43506-13?
A51C43506-13 is cataloged in the U.S. Government catalog under NSN 5306-00-006-4597. This indicates validated use in U.S. government and defense supply chains.
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