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039-0000-003 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

039-0000-003: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, design_type: FRICTION, width_across_flats: 0.406 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN, inside_diameter_length: 0.472 INCHES MINIMUM AND 0.482 INCHES MAXIMUM IN, round_cap_outside_surface_condition: SMOOTH. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-003-6492, 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
039-0000-003
NSN: 5340-01-003-6492
FSC: 5340 — Hardware, Commercial
CAGE: 71468 — ITT CANNON LLC (USA)
SPECIFICATIONS
materialPLASTIC
design_typeFRICTION
width_across_flats0.406 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
inside_diameter_length0.472 INCHES MINIMUM AND 0.482 INCHES MAXIMUM IN
round_cap_outside_surface_conditionSMOOTH
NSN5340-01-003-6492
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 039-0000-003 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
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.406 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
•
DESIGN TYPE: FRICTION
•
MATERIAL: PLASTIC
•
INSIDE DIAMETER LENGTH: 0.472 INCHES MINIMUM AND 0.482 INCHES MAXIMUM IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.406 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
DESIGN TYPEFRICTION
MATERIALPLASTIC
INSIDE DIAMETER LENGTH0.472 INCHES MINIMUM AND 0.482 INCHES MAXIMUM IN
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 1
039-0200-003Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 039-0000-003?
039-0000-003 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 039-0000-003?
There is 1 known substitute for 039-0000-003: 039-0200-003. Substitute compatibility should be verified for your specific system.
What is the NSN for 039-0000-003?
039-0000-003 is cataloged in the U.S. Government catalog under NSN 5340-01-003-6492. 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.