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728-938SS-12 — SCREW,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

728-938SS-12: SCREW,EXTERNALLY RELIEVED BODY.

The SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: KNURLED NO. 1, head_height: 0.234 INCHES MINIMUM IN, thread_class: 2A A, head_diameter: 0.432 INCHES MINIMUM IN, thread_length: 0.375 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-588-5773, 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
728-938SS-12
NSN: 5305-01-588-5773
FSC: 5305 — Screws
CAGE: 51506 — ACCURATE SCREW MACHINE CORP DIV ACCURATE SCREW MACHINE CORPORATION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleKNURLED NO. 1
head_height0.234 INCHES MINIMUM IN
thread_class2A A
head_diameter0.432 INCHES MINIMUM IN
thread_length0.375 INCHES NOMINAL IN
fastener_length0.938 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
end_item_identificationHELICOPTER
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
NSN5305-01-588-5773
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 728-938SS-12 · 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: 0.234 INCHES MINIMUM IN
•
FASTENER LENGTH: 0.938 INCHES NOMINAL IN
•
THREAD LENGTH: 0.375 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: KNURLED NO. 1
•
THREAD DIRECTION: RIGHT-HAND
•
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY: 1
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.234 INCHES MINIMUM IN
FASTENER LENGTH0.938 INCHES NOMINAL IN
THREAD LENGTH0.375 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEKNURLED NO. 1
THREAD DIRECTIONRIGHT-HAND
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
INTERNAL DRIVE STYLESLOT
THREAD CLASS2A A
END ITEM IDENTIFICATIONHELICOPTER
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

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 728-938SS-12?
728-938SS-12 is a SCREW,EXTERNALLY RELIEVED BODY.
What is the NSN for 728-938SS-12?
728-938SS-12 is cataloged in the U.S. Government catalog under NSN 5305-01-588-5773. 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.