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903640 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

903640: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include overall_length: 1.500 INCHES NOMINAL IN, special_features: SELF-CONTAINED; 0.188 IN. DIA; NON-VISIBLE IN, style_designator: MINI, rated_average_life: HOURS, average_life_rating_in_hours: 3.0.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-021-7057, 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
903640
NSN: 5305-00-021-7057
NIINs: 000217057, 012470364
FSC: 5305 — Screws
CAGE: 6N299 — AGCO CORP PARTS OPN (USA)
SPECIFICATIONS
overall_length1.500 INCHES NOMINAL IN
special_featuresSELF-CONTAINED; 0.188 IN. DIA; NON-VISIBLE IN
style_designatorMINI
rated_average_lifeHOURS
average_life_rating_in_hours3.0
NSN5305-00-021-7057
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 903640 · 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: 0.375 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.000 INCHES NOMINAL IN
•
THREAD LENGTH: 1.250 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.750 INCHES NOMINAL IN
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.375 INCHES NOMINAL IN
FASTENER LENGTH2.000 INCHES NOMINAL IN
THREAD LENGTH1.250 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.750 INCHES NOMINAL IN
THREAD CLASS2A A
THREAD QUANTITY PER INCH13
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
217057Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
0903640Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 903640?
903640 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 903640?
There are 2 known substitutes for 903640: 217057, 0903640. Substitute compatibility should be verified for your specific system.
What is the NSN for 903640?
903640 is cataloged in the U.S. Government catalog under NSN 5305-00-021-7057. 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.