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AES01C438A37AW9M31 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

AES01C438A37AW9M31: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL UNS K04100 OVERALL, head_style: HEXAGON, thread_class: 2A A, thread_length: 1.375 INCHES NOMINAL IN, fastener_length: 1.375 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-679-2865, 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
AES01C438A37AW9M31
NSN: 5305-01-679-2865
FSC: 5305 — Screws
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
materialSTEEL UNS K04100 OVERALL
head_styleHEXAGON
thread_class2A A
thread_length1.375 INCHES NOMINAL IN
fastener_length1.375 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentZINC AND ALUMINUM OVERALL
end_item_identification01-545-7365
nominal_thread_diameter0.4375 INCHES IN
thread_quantity_per_inch14
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
material_document_and_classificationASTM A354, GRADE BD AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
NSN5305-01-679-2865
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AES01C438A37AW9M31 · 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
•
FASTENER LENGTH: 1.375 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM F2833, GRADE 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 1.375 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A354, GRADE BD AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.4375 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
SURFACE TREATMENT: ZINC AND ALUMINUM OVERALL
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.375 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM F2833, GRADE 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH1.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A354, GRADE BD AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.4375 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTZINC AND ALUMINUM OVERALL
THREAD CLASS2A A
END ITEM IDENTIFICATION01-545-7365
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 1
B18.24Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 AES01C438A37AW9M31?
AES01C438A37AW9M31 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace AES01C438A37AW9M31?
There is 1 known substitute for AES01C438A37AW9M31: B18.24. Substitute compatibility should be verified for your specific system.
What is the NSN for AES01C438A37AW9M31?
AES01C438A37AW9M31 is cataloged in the U.S. Government catalog under NSN 5305-01-679-2865. 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.