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2125660 — PLUG,EXPANSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2125660: PLUG,EXPANSION.

The PLUG,EXPANSION is a the manufacturer industrial component. Key specifications include radius: 1.810 INCHES NOMINAL IN, material: COPPER ALLOY, outside_diameter: 1.370 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN, style_designator: CONCAVE, material_thickness: 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-820-3624, 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
2125660
NSN: 5340-00-820-3624
FSC: 5340 — Hardware, Commercial
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
radius1.810 INCHES NOMINAL IN
materialCOPPER ALLOY
outside_diameter1.370 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
style_designatorCONCAVE
material_thickness0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
NSN5340-00-820-3624
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2125660 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
•
RADIUS: 1.810 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.370 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CONCAVE
•
MATERIAL THICKNESS: 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
RADIUS1.810 INCHES NOMINAL IN
OUTSIDE DIAMETER1.370 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
STYLE DESIGNATORCONCAVE
MATERIAL THICKNESS0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
MATERIALCOPPER 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2125660?
2125660 is a PLUG,EXPANSION.
What is the NSN for 2125660?
2125660 is cataloged in the U.S. Government catalog under NSN 5340-00-820-3624. 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.