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4-80726 — BOLT,INTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4-80726: BOLT,INTERNALLY RELIEVED BODY.

The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include head_style: DEE, head_height: 0.200 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 1.990 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN, thread_length: 0.650 INCHES NOMINAL IN, fastener_length: 3.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-302-5639, 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
4-80726
NSN: 5306-00-302-5639
FSC: 5306 — Bolts
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
head_styleDEE
head_height0.200 INCHES NOMINAL IN
thread_class2A A
head_diameter1.990 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN
thread_length0.650 INCHES NOMINAL IN
fastener_length3.750 INCHES NOMINAL IN
shoulder_length3.122 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
shoulder_diameter1.750 INCHES NOMINAL IN
nominal_thread_diameter1.625 INCHES IN
concentric_hole_diameter1.310 INCHES NOMINAL IN
NSN5306-00-302-5639
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4-80726 · 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: 0.200 INCHES NOMINAL IN
•
FASTENER LENGTH: 3.750 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.875 INCHES NOMINAL IN
•
THREAD LENGTH: 0.650 INCHES NOMINAL IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM FIRST HOLE IN
•
STYLE DESIGNATOR: CONCENTRIC HOLE UNTHREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS6260 ASSN STD 1ST MATERIAL RESPONSE OR AMS6250 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 1.625 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.200 INCHES NOMINAL IN
FASTENER LENGTH3.750 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO FLAT0.875 INCHES NOMINAL IN
THREAD LENGTH0.650 INCHES NOMINAL IN
SHANK UNTHREADED HOLE DIAMETER0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM FIRST HOLE IN
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6260 ASSN STD 1ST MATERIAL RESPONSE OR AMS6250 ASSN STD 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER1.625 INCHES IN
HEAD STYLEDEE
THREAD DIRECTIONRIGHT-HAND
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4-80726?
4-80726 is a BOLT,INTERNALLY RELIEVED BODY.
What is the NSN for 4-80726?
4-80726 is cataloged in the U.S. Government catalog under NSN 5306-00-302-5639. This indicates validated use in U.S. government and defense supply chains.
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