PartsTable / COMPONENT / A2-1/2
A2-1/2
✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
The A2-1/2 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-840-1643, 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
A2-1/2
NSN: 5340-00-840-1643 FSC: 5340 CAGE: 34669 — BUNZL PLASTIC INC DBA ALLIANCE PLASTICS (USA)
SPECIFICATIONS
Part Number A2-1/2 NSN 5340-00-840-1643
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION
ID: —
CROSS-SECTION
CS: —
SPECIFICATION
Material: —
Durometer: —
Temp: —
PN: A2-1/2
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
227 Upgraded Successor successor cross-reference
successor
2877827 Upgraded Successor successor cross-reference
successor
B8048PC9 Interchangeable interchangeable cross-reference
interchangeable
A212 Interchangeable interchangeable cross-reference
interchangeable
A1 Interchangeable interchangeable cross-reference
interchangeable
10-2107 Interchangeable interchangeable cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A2-1/2?
A2-1/2 is a A2-1/2.
What parts can replace A2-1/2?
There are 16 known substitutes for A2-1/2: 227, 2877827, B8048PC9 and 13 more. Substitute compatibility should be verified for your specific system.
Is A2-1/2 still available?
A2-1/2 is currently cancelled.