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583R840H30 — SCREW ASSEMBLY,PANEL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

583R840H30: SCREW ASSEMBLY,PANEL.

The SCREW ASSEMBLY,PANEL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 FASTENER, head_style: FLAT CHAMFER, head_height: 0.133 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN, thread_length: 0.115 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-155-4367, 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
583R840H30
NSN: 5305-01-155-4367
FSC: 5305 — Screws
CAGE: 17446 — HUCK INTERNATIONAL, INC (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 FASTENER
head_styleFLAT CHAMFER
head_height0.133 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
thread_length0.115 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
fastener_length0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE SPRING
width_across_flats0.109 INCHES NOMINAL IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.138 INCHES IN
NSN5305-01-155-4367
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 583R840H30 · 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
•
WIDTH ACROSS FLATS: 0.109 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.133 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
•
MATERIAL ACCOMMODATED THICKNESS: 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.115 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.109 INCHES NOMINAL IN
HEAD HEIGHT0.133 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN
FASTENER LENGTH0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE STAND-OFF
MATERIAL ACCOMMODATED THICKNESS0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN
THREAD LENGTH0.115 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE STAND-OFF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE SPRING
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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 583R840H30?
583R840H30 is a SCREW ASSEMBLY,PANEL.
What is the NSN for 583R840H30?
583R840H30 is cataloged in the U.S. Government catalog under NSN 5305-01-155-4367. 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.