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A3005127 — SCREW,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A3005127: SCREW,EXTERNALLY RELIEVED BODY.

The SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include head_style: HEXAGON EXTENDED WASHER, head_height: 0.078 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.184 INCHES NOMINAL IN, fastener_length: 0.455 INCHES MINIMUM AND 0.465 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-339-1403, 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
A3005127
NSN: 5305-01-339-1403
FSC: 5305 — Screws
CAGE: 62206 — B & B SPECIALTIES INC (USA)
SPECIFICATIONS
head_styleHEXAGON EXTENDED WASHER
head_height0.078 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
thread_class3A A
thread_length0.184 INCHES NOMINAL IN
fastener_length0.455 INCHES MINIMUM AND 0.465 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE FASTENER
width_between_flats0.213 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
internal_drive_styleW/O INTERNAL DRIVE
nominal_thread_diameter0.138 INCHES IN
extended_washer_diameter0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
first_diameter_from_head0.090 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
NSN5305-01-339-1403
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A3005127 · 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: 0.016 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.078 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.455 INCHES MINIMUM AND 0.465 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
•
EXTENDED WASHER DIAMETER: 0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.184 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5731,COMP A286 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.016 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
HEAD HEIGHT0.078 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
FASTENER LENGTH0.455 INCHES MINIMUM AND 0.465 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
EXTENDED WASHER DIAMETER0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
THREAD LENGTH0.184 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5731,COMP A286 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC ALL MATERIAL RESPONSES PRIMARY WASHER
FIRST DIAMETER FROM HEAD0.090 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
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 A3005127?
A3005127 is a SCREW,EXTERNALLY RELIEVED BODY.
What is the NSN for A3005127?
A3005127 is cataloged in the U.S. Government catalog under NSN 5305-01-339-1403. 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.