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4024T91PO2 — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4024T91PO2: BOLT,EXTERNALLY RELIEVED BODY.

The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, head_style: HEXAGON, head_height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.645 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN, fastener_length: 7.940 INCHES MINIMUM AND 7.960 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-163-9359, 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
4024T91PO2
NSN: 5306-00-163-9359
FSC: 5306 — Bolts
CAGE: 2V343 — APEX MANUFACTURING COMPANY, INC. DBA APEX MANUFACTURING CO (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
head_styleHEXAGON
head_height0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
thread_class3A A
thread_length0.645 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN
fastener_length7.940 INCHES MINIMUM AND 7.960 INCHES MAXIMUM IN
width_between_flats0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
first_diameter_from_head0.5100 INCHES MINIMUM AND 0.5105 INCHES MAXIMUM IN
third_diameter_from_head0.5100 INCHES MINIMUM AND 0.5105 INCHES MAXIMUM IN
second_diameter_from_head0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
shank_unthreaded_hole_diameter0.094 INCHES MINIMUM AND 0.101 INCHES MAXIMUM FIRST HOLE IN
distance_from_head_largest_bearing_surface_to_shank_hole_center7.710 INCHES MINIMUM AND 7.720 INCHES MAXIMUM FIRST HOLE IN
NSN5306-00-163-9359
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4024T91PO2 · 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: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
FASTENER LENGTH: 7.940 INCHES MINIMUM AND 7.960 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.645 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.094 INCHES MINIMUM AND 0.101 INCHES MAXIMUM FIRST HOLE IN
•
FIRST DIAMETER FROM HEAD: 0.5100 INCHES MINIMUM AND 0.5105 INCHES MAXIMUM IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: 5.185 INCHES MINIMUM AND 5.215 INCHES MAXIMUM IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER: 7.285 INCHES MINIMUM AND 7.295 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
FASTENER LENGTH7.940 INCHES MINIMUM AND 7.960 INCHES MAXIMUM IN
THREAD LENGTH0.645 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN
SHANK UNTHREADED HOLE DIAMETER0.094 INCHES MINIMUM AND 0.101 INCHES MAXIMUM FIRST HOLE IN
FIRST DIAMETER FROM HEAD0.5100 INCHES MINIMUM AND 0.5105 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER5.185 INCHES MINIMUM AND 5.215 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER7.285 INCHES MINIMUM AND 7.295 INCHES MAXIMUM IN
HEAD STYLEHEXAGON
SECOND DIAMETER FROM HEAD0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
WIDTH BETWEEN FLATS0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
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 1
4024T91P02Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 4024T91PO2?
4024T91PO2 is a BOLT,EXTERNALLY RELIEVED BODY.
What parts can replace 4024T91PO2?
There is 1 known substitute for 4024T91PO2: 4024T91P02. Substitute compatibility should be verified for your specific system.
What is the NSN for 4024T91PO2?
4024T91PO2 is cataloged in the U.S. Government catalog under NSN 5306-00-163-9359. 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.