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12993046 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12993046: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: STEEL, special_features: DUST CAP, supplementary_features: REQUIREMENTS: MATERIAL STEEL; FINISH CAD CHROMATE OLIVE DRAB; LANYARD NYLON CORD OLIVE DRAB; FITS CONNECTOR M55181/4-01, end_item_identification: HOWITZER, TOWED, MED,155MM, M198 MM, round_cap_outside_surface_condition: KNURLED. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-494-3596, 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
12993046
NSN: 5340-01-494-3596
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL
special_featuresDUST CAP
supplementary_featuresREQUIREMENTS: MATERIAL STEEL; FINISH CAD CHROMATE OLIVE DRAB; LANYARD NYLON CORD OLIVE DRAB; FITS CONNECTOR M55181/4-01
end_item_identificationHOWITZER, TOWED, MED,155MM, M198 MM
round_cap_outside_surface_conditionKNURLED
NSN5340-01-494-3596
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12993046 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
•
SUPPLEMENTARY FEATURES: REQUIREMENTS: MATERIAL STEEL; FINISH CAD CHROMATE OLIVE DRAB; LANYARD NYLON CORD OLIVE DRAB; FITS CONNECTOR M55181/4-01
•
MATERIAL: STEEL
•
ROUND CAP OUTSIDE SURFACE CONDITION: KNURLED
TECHNICAL CHARACTERISTICS
SUPPLEMENTARY FEATURESREQUIREMENTS: MATERIAL STEEL; FINISH CAD CHROMATE OLIVE DRAB; LANYARD NYLON CORD OLIVE DRAB; FITS CONNECTOR M55181/4-01
SPECIAL FEATURESDUST CAP
END ITEM IDENTIFICATIONHOWITZER, TOWED, MED,155MM, M198 MM
MATERIALSTEEL
ROUND CAP OUTSIDE SURFACE CONDITIONKNURLED
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

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 12993046?
12993046 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for 12993046?
12993046 is cataloged in the U.S. Government catalog under NSN 5340-01-494-3596. 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.