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5588690 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5588690: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 9.1 MILLIMETERS MINIMUM AND 10.9 MILLIMETERS MAXIMUM MM, thread_length: 17.0 MILLIMETERS MINIMUM AND 18.5 MILLIMETERS MAXIMUM MM, fastener_length: 109.5 MILLIMETERS MINIMUM AND 111.0 MILLIMETERS MAXIMUM MM, special_features: CONCAVE DIAMOND KNURLED 16 IMPRESSIONS MAX. EQUALLY SPACED ON 17.0 OF GRIP.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-153-0227, 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
5588690
NSN: 5305-01-153-0227
FSC: 5305 — Screws
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height9.1 MILLIMETERS MINIMUM AND 10.9 MILLIMETERS MAXIMUM MM
thread_length17.0 MILLIMETERS MINIMUM AND 18.5 MILLIMETERS MAXIMUM MM
fastener_length109.5 MILLIMETERS MINIMUM AND 111.0 MILLIMETERS MAXIMUM MM
special_featuresCONCAVE DIAMOND KNURLED 16 IMPRESSIONS MAX. EQUALLY SPACED ON 17.0 OF GRIP
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_between_flats14.7 MILLIMETERS MINIMUM AND 15.0 MILLIMETERS MAXIMUM MM
nominal_thread_diameter10.0 MILLIMETERS MM
extended_washer_diameter21.5 MILLIMETERS NOMINAL MM
minimum_tensile_strength900 MEGAPASCALS
NSN5305-01-153-0227
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5588690 · 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: 1.8 MILLIMETERS MINIMUM AND 3.6 MILLIMETERS MAXIMUM MM
•
HEAD HEIGHT: 9.1 MILLIMETERS MINIMUM AND 10.9 MILLIMETERS MAXIMUM MM
•
EXTERNAL THREAD TOLERANCE CLASS: 6G G
•
FASTENER LENGTH: 109.5 MILLIMETERS MINIMUM AND 111.0 MILLIMETERS MAXIMUM MM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: GM 4342-M CODE 20D48,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 21.5 MILLIMETERS NOMINAL MM
•
THREAD PITCH IN MILLIMETERS: 1.5
•
THREAD LENGTH: 17.0 MILLIMETERS MINIMUM AND 18.5 MILLIMETERS MAXIMUM MM
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS1.8 MILLIMETERS MINIMUM AND 3.6 MILLIMETERS MAXIMUM MM
HEAD HEIGHT9.1 MILLIMETERS MINIMUM AND 10.9 MILLIMETERS MAXIMUM MM
EXTERNAL THREAD TOLERANCE CLASS6G G
FASTENER LENGTH109.5 MILLIMETERS MINIMUM AND 111.0 MILLIMETERS MAXIMUM MM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONGM 4342-M CODE 20D48,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER21.5 MILLIMETERS NOMINAL MM
THREAD PITCH IN MILLIMETERS1.5
THREAD LENGTH17.0 MILLIMETERS MINIMUM AND 18.5 MILLIMETERS MAXIMUM MM
MATERIAL DOCUMENT AND CLASSIFICATIONGM 500-M 9.8,FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER10.0 MILLIMETERS MM
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
14028930Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5588690?
5588690 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 5588690?
There is 1 known substitute for 5588690: 14028930. Substitute compatibility should be verified for your specific system.
What is the NSN for 5588690?
5588690 is cataloged in the U.S. Government catalog under NSN 5305-01-153-0227. 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.