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499-2199 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

499-2199: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include fastener_length: 25.0 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND, end_item_identification: GEAR COVER MOUNTING, nominal_thread_diameter: 8.0 MILLIMETERS MM, thread_pitch_in_millimeters: 1.25, part_name_assigned_by_controlling_agency: SCREW,STUDDED FLANGE CAP. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-524-7761, 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
499-2199
NSN: 5340-01-524-7761
NIINs: 015247761, 016442449
FSC: 5340 — Hardware, Commercial
CAGE: 34914 — HIAB USA INC (USA)
SPECIFICATIONS
fastener_length25.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
end_item_identificationGEAR COVER MOUNTING
nominal_thread_diameter8.0 MILLIMETERS MM
thread_series_designatorM
thread_pitch_in_millimeters1.25
part_name_assigned_by_controlling_agencySCREW,STUDDED FLANGE CAP
NSN5340-01-524-7761
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 499-2199 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 1
4KK621Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 499-2199?
499-2199 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 499-2199?
There is 1 known substitute for 499-2199: 4KK621. Substitute compatibility should be verified for your specific system.
What is the NSN for 499-2199?
499-2199 is cataloged in the U.S. Government catalog under NSN 5340-01-524-7761. 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.