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Technical Data Sheet
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279MR1P2 — BUTTON,PLUG

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

279MR1P2: BUTTON,PLUG.

The BUTTON,PLUG is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-00-281-9895, 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
279MR1P2
NSN: 5340-00-281-9895
FSC: 5340 — Hardware, Commercial
CAGE: 49956 — RAYTHEON COMPANY DIV CORP (USA)
SPECIFICATIONS
Part Number279MR1P2
NSN5340-00-281-9895
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 279MR1P2 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
SUBSTITUTES & CROSS-REFERENCES 3
SS48189K2915Reference document
Same NSN cross-reference
Reference document — Secondary reference
48189F52Reference document
Same NSN cross-reference
Reference document — Secondary reference
48189Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 279MR1P2?
279MR1P2 is a BUTTON,PLUG.
What parts can replace 279MR1P2?
There are 3 known substitutes for 279MR1P2: SS48189K2915, 48189F52, 48189. Substitute compatibility should be verified for your specific system.
What is the NSN for 279MR1P2?
279MR1P2 is cataloged in the U.S. Government catalog under NSN 5340-00-281-9895. This indicates validated use in U.S. government and defense supply chains.
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