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6898687-2 — SEAL,BALANCE PISTON

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6898687-2: SEAL,BALANCE PISTON.

The SEAL,BALANCE PISTON is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-072-5923, 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
6898687-2
NSN: 5330-01-072-5923
FSC: 5330 — Packing and Gasket Materials
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCRES,AMS5660 AND AMS5661,4.279 IN. MIN,4.280 IN. MAX OD,4.140 IN. MIN,4.142 IN. MAX ID,0.440 IN. MIN,0.450 IN. MAX O/A LG IN
NSN5330-01-072-5923
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6898687-2 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
KEY FEATURES
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: CRES,AMS5660 AND AMS5661,4.279 IN. MIN,4.280 IN. MAX OD,4.140 IN. MIN,4.142 IN. MAX ID,0.440 IN. MIN,0.450 IN. MAX O/A LG IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCRES,AMS5660 AND AMS5661,4.279 IN. MIN,4.280 IN. MAX OD,4.140 IN. MIN,4.142 IN. MAX ID,0.440 IN. MIN,0.450 IN. MAX O/A LG IN
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6898687-2?
6898687-2 is a SEAL,BALANCE PISTON.
What is the NSN for 6898687-2?
6898687-2 is cataloged in the U.S. Government catalog under NSN 5330-01-072-5923. This indicates validated use in U.S. government and defense supply chains.
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