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2-123 BUNA — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2-123 BUNA: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, center_hole_diameter: 1.174 INCHES NOMINAL IN, end_item_identification: VALVE,COUNTER. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-605-3877, 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
2-123 BUNA
NSN: 5331-01-605-3877
FSC: 5331 — O-ring
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
center_hole_diameter1.174 INCHES NOMINAL IN
end_item_identificationVALVE,COUNTER
NSN5331-01-605-3877
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2-123 BUNA 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
•
CENTER HOLE DIAMETER: 1.174 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CENTER HOLE DIAMETER1.174 INCHES NOMINAL IN
END ITEM IDENTIFICATIONVALVE,COUNTER
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 1
D-452-116 REV A ITEM DReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2-123 BUNA?
2-123 BUNA is a O-RING.
What parts can replace 2-123 BUNA?
There is 1 known substitute for 2-123 BUNA: D-452-116 REV A ITEM D. Substitute compatibility should be verified for your specific system.
What is the NSN for 2-123 BUNA?
2-123 BUNA is cataloged in the U.S. Government catalog under NSN 5331-01-605-3877. This indicates validated use in U.S. government and defense supply chains.
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