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12940879 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12940879: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include peripheral_diameter: 4.990 INCHES NOMINAL IN, center_hole_diameter: 3.902 INCHES NOMINAL IN, cross-sectional_height: 3.460 INCHES MINIMUM AND 3.540 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-413-7810, 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
12940879
NSN: 5330-01-413-7810
FSC: 5330 — Packing and Gasket Materials
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU OVERALL
peripheral_diameter4.990 INCHES NOMINAL IN
center_hole_diameter3.902 INCHES NOMINAL IN
cross-sectional_height3.460 INCHES MINIMUM AND 3.540 INCHES MAXIMUM IN
material_document_and_classificationMIL-R-3065 MIL SPEC ALL MATERIAL RESPONSES AND ASTM D2000, -5BG710A14,B14,Z,E034,F19,Z1,Z2,Z3,Z4 ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5330-01-413-7810
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12940879 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
•
CROSS-SECTIONAL HEIGHT: 3.460 INCHES MINIMUM AND 3.540 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-3065 MIL SPEC ALL MATERIAL RESPONSES AND ASTM D2000, -5BG710A14,B14,Z,E034,F19,Z1,Z2,Z3,Z4 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
PERIPHERAL DIAMETER: 4.990 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 3.902 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT3.460 INCHES MINIMUM AND 3.540 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-3065 MIL SPEC ALL MATERIAL RESPONSES AND ASTM D2000, -5BG710A14,B14,Z,E034,F19,Z1,Z2,Z3,Z4 ASSN STD ALL MATERIAL RESPONSES OVERALL
PERIPHERAL DIAMETER4.990 INCHES NOMINAL IN
CENTER HOLE DIAMETER3.902 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12940879?
12940879 is a RETAINER,PACKING.
What is the NSN for 12940879?
12940879 is cataloged in the U.S. Government catalog under NSN 5330-01-413-7810. This indicates validated use in U.S. government and defense supply chains.
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