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999593 — SCREW ASSEMBLY,PANEL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

999593: SCREW ASSEMBLY,PANEL.

The SCREW ASSEMBLY,PANEL is a the manufacturer industrial component. Key specifications include material: STEEL OR STEEL COMP 302 FASTENER, head_style: PAN, head_height: 0.095 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.270 INCHES NOMINAL IN, thread_length: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-359-4615, 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
999593
NSN: 5330-01-359-4615
NIINs: 013594615, 013626170
FSC: 5330 — Packing and Gasket Materials
CAGE: 89749 — CLARK MATERIAL HANDLING COMPANY (USA)
SPECIFICATIONS
materialSTEEL OR STEEL COMP 302 FASTENER
head_stylePAN
head_height0.095 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.270 INCHES NOMINAL IN
thread_length0.250 INCHES NOMINAL IN
fastener_length0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE FASTENER
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.138 INCHES IN
thread_quantity_per_inch32
NSN5330-01-359-4615
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 999593 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 999593?
999593 is a SCREW ASSEMBLY,PANEL.
What is the NSN for 999593?
999593 is cataloged in the U.S. Government catalog under NSN 5330-01-359-4615. 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.