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68A411801-2003 — BOLT,INTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

68A411801-2003: BOLT,INTERNALLY RELIEVED BODY.

The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_height: 0.625 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.835 INCHES MINIMUM AND 0.989 INCHES MAXIMUM IN, fastener_length: 4.500 INCHES MINIMUM AND 4.530 INCHES MAXIMUM IN, hardness_rating: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-367-8515, 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
68A411801-2003
NSN: 5306-00-367-8515
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_height0.625 INCHES NOMINAL IN
thread_class3A A
thread_length0.835 INCHES MINIMUM AND 0.989 INCHES MAXIMUM IN
fastener_length4.500 INCHES MINIMUM AND 4.530 INCHES MAXIMUM IN
hardness_rating46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
width_between_flats1.802 INCHES MINIMUM AND 1.815 INCHES MAXIMUM IN
nominal_thread_diameter1.250 INCHES IN
thread_quantity_per_inch12
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
shank_unthreaded_hole_diameter0.141 INCHES NOMINAL FIRST HOLE IN
NSN5306-00-367-8515
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 68A411801-2003 · 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: 0.625 INCHES NOMINAL IN
•
FASTENER LENGTH: 4.500 INCHES MINIMUM AND 4.530 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.835 INCHES MINIMUM AND 0.989 INCHES MAXIMUM IN
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
SHANK UNTHREADED HOLE DIAMETER: 0.141 INCHES NOMINAL FIRST HOLE IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 1.250 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.625 INCHES NOMINAL IN
FASTENER LENGTH4.500 INCHES MINIMUM AND 4.530 INCHES MAXIMUM IN
THREAD LENGTH0.835 INCHES MINIMUM AND 0.989 INCHES MAXIMUM IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES NOMINAL FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER1.250 INCHES IN
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS1.802 INCHES MINIMUM AND 1.815 INCHES MAXIMUM IN
THREAD CLASS3A A
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 68A411801-2003?
68A411801-2003 is a BOLT,INTERNALLY RELIEVED BODY.
What is the NSN for 68A411801-2003?
68A411801-2003 is cataloged in the U.S. Government catalog under NSN 5306-00-367-8515. 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.