PartsTable
Technical Data Sheet
Download PDF

2101579-2 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2101579-2: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: RUBBER SILICONE AND COPPER ALLOY, overall_length: 156.0 MILLIMETERS NOMINAL MM, overall_diameter: 19.0 MILLIMETERS NOMINAL MM, special_features: CAP INCLUDES LANYARD AND O-RING; OEM IS BASED IN CHINA, surface_treatment: CHROMATE, end_item_identification: 5820016255804. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-632-7546, 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
2101579-2
NSN: 5340-01-632-7546
FSC: 5340 — Hardware, Commercial
CAGE: 00779 — TE CONNECTIVITY CORPORATION (USA)
SPECIFICATIONS
materialRUBBER SILICONE AND COPPER ALLOY
overall_length156.0 MILLIMETERS NOMINAL MM
overall_diameter19.0 MILLIMETERS NOMINAL MM
special_featuresCAP INCLUDES LANYARD AND O-RING; OEM IS BASED IN CHINA
surface_treatmentCHROMATE
end_item_identification5820016255804
NSN5340-01-632-7546
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2101579-2 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
•
OVERALL DIAMETER: 19.0 MILLIMETERS NOMINAL MM
•
SURFACE TREATMENT: CHROMATE
•
MATERIAL: RUBBER SILICONE AND COPPER ALLOY
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER19.0 MILLIMETERS NOMINAL MM
OVERALL LENGTH156.0 MILLIMETERS NOMINAL MM
SPECIAL FEATURESCAP INCLUDES LANYARD AND O-RING; OEM IS BASED IN CHINA
SURFACE TREATMENTCHROMATE
END ITEM IDENTIFICATION5820016255804
MATERIALRUBBER SILICONE AND COPPER ALLOY
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
Ready to buy 2101579-2?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 2101579-2?
2101579-2 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for 2101579-2?
2101579-2 is cataloged in the U.S. Government catalog under NSN 5340-01-632-7546. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 2101579-2

✓ 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.