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AS54509 — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

AS54509: 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: DOUBLE HEXAGON EXTENDED WASHER, head_height: 0.2580 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.3900 INCHES MAXIMUM IN, fastener_length: 0.8200 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-658-5501, 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
AS54509
NSN: 5306-01-658-5501
FSC: 5306 — Bolts
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
head_styleDOUBLE HEXAGON EXTENDED WASHER
head_height0.2580 INCHES MAXIMUM IN
thread_class3A A
thread_length0.3900 INCHES MAXIMUM IN
fastener_length0.8200 INCHES MAXIMUM IN
special_featuresNEXT HIGHER ASSEMBLY IS LIFTFAN ASSEMBLY MODULE
thread_directionRIGHT-HAND
width_between_flats0.2500 INCHES MAXIMUM IN
end_item_identificationF-35B LIFTFAN
nominal_thread_diameter0.190 INCHES IN
extended_washer_diameter0.3750 INCHES MAXIMUM IN
NSN5306-01-658-5501
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AS54509 · 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
•
EXTENDED WASHER THICKNESS: 0.0400 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.2580 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.8200 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.3750 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.3900 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON EXTENDED WASHER
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.0400 INCHES MAXIMUM IN
HEAD HEIGHT0.2580 INCHES MAXIMUM IN
FASTENER LENGTH0.8200 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.3750 INCHES MAXIMUM IN
THREAD LENGTH0.3900 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.2500 INCHES MAXIMUM IN
SPECIAL FEATURESNEXT HIGHER ASSEMBLY IS LIFTFAN ASSEMBLY MODULE
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 AS54509?
AS54509 is a BOLT,EXTERNALLY RELIEVED BODY.
What is the NSN for AS54509?
AS54509 is cataloged in the U.S. Government catalog under NSN 5306-01-658-5501. 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.