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454388 — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

454388: BOLT,EXTERNALLY RELIEVED BODY.

The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: DEE CHAMFER, head_height: 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN, thread_class: 1A A, head_diameter: 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN, thread_length: 0.520 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-067-3689, 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
454388
NSN: 5306-00-067-3689
FSC: 5306 — Bolts
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleDEE CHAMFER
head_height0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
thread_class1A A
head_diameter0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN
thread_length0.520 INCHES MINIMUM IN
fastener_length1.180 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_diameter0.250 INCHES IN
first_diameter_from_head0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
NSN5306-00-067-3689
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 454388 · 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: 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.180 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.520 INCHES MINIMUM IN
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FIRST DIAMETER FROM HEAD: 0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: 0.260 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
FASTENER LENGTH1.180 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO FLAT0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
THREAD LENGTH0.520 INCHES MINIMUM IN
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.260 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER0.640 INCHES MINIMUM AND 0.700 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 454388?
454388 is a BOLT,EXTERNALLY RELIEVED BODY.
What is the NSN for 454388?
454388 is cataloged in the U.S. Government catalog under NSN 5306-00-067-3689. 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.