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D44571 — BOLT,INTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

D44571: BOLT,INTERNALLY RELIEVED BODY.

The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.620 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 2.000 INCHES MINIMUM IN, fastener_length: 3.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-031-2712, 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
D44571
NSN: 5306-00-031-2712
FSC: 5306 — Bolts
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.620 INCHES NOMINAL IN
thread_class2A A
thread_length2.000 INCHES MINIMUM IN
fastener_length3.000 INCHES NOMINAL IN
special_featuresCONCENTRIC HOLE FROM HEAD END 0.378 IN. DIA 0.340 IN. DEPTH IN
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
width_between_flats1.500 INCHES NOMINAL IN
concentric_hole_depth3.280 INCHES NOMINAL IN
nominal_thread_diameter1.000 INCHES IN
NSN5306-00-031-2712
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: D44571 · 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: 0.620 INCHES NOMINAL IN
•
FASTENER LENGTH: 3.000 INCHES NOMINAL IN
•
CONCENTRIC HOLE DEPTH: 3.280 INCHES NOMINAL IN
•
THREAD LENGTH: 2.000 INCHES MINIMUM IN
•
STYLE DESIGNATOR: CONCENTRIC HOLE UNTHREADED
•
NOMINAL THREAD DIAMETER: 1.000 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.620 INCHES NOMINAL IN
FASTENER LENGTH3.000 INCHES NOMINAL IN
CONCENTRIC HOLE DEPTH3.280 INCHES NOMINAL IN
THREAD LENGTH2.000 INCHES MINIMUM IN
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
NOMINAL THREAD DIAMETER1.000 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS1.500 INCHES NOMINAL IN
CONCENTRIC HOLE DIAMETER0.500 INCHES NOMINAL IN
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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D44571?
D44571 is a BOLT,INTERNALLY RELIEVED BODY.
What is the NSN for D44571?
D44571 is cataloged in the U.S. Government catalog under NSN 5306-00-031-2712. 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.