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A51C43592-19 — BOLT,INTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A51C43592-19: 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: 0.110 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.247 INCHES MAXIMUM IN, fastener_length: 2.088 INCHES MINIMUM AND 2.098 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-006-4599, 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
A51C43592-19
NSN: 5306-00-006-4599
FSC: 5306 — Bolts
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 410 OVERALL
head_styleHEXAGON
head_height0.110 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
thread_class3A A
thread_length0.247 INCHES MAXIMUM IN
fastener_length2.088 INCHES MINIMUM AND 2.098 INCHES MAXIMUM IN
hardness_rating39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length1.737 INCHES MINIMUM AND 1.747 INCHES MAXIMUM IN
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
shoulder_diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
NSN5306-00-006-4599
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A51C43592-19 · 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: 0.110 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.088 INCHES MINIMUM AND 2.098 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONCENTRIC HOLE DEPTH: 1.620 INCHES NOMINAL IN
•
THREAD LENGTH: 0.247 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 HEIGHT0.110 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
FASTENER LENGTH2.088 INCHES MINIMUM AND 2.098 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CONCENTRIC HOLE DEPTH1.620 INCHES NOMINAL IN
THREAD LENGTH0.247 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 DIAMETER0.375 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

No substitute or cross-reference records for this part.

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 A51C43592-19?
A51C43592-19 is a BOLT,INTERNALLY RELIEVED BODY.
What is the NSN for A51C43592-19?
A51C43592-19 is cataloged in the U.S. Government catalog under NSN 5306-00-006-4599. 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.