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CHU-1689 — MOUNT ASSEMBLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

CHU-1689: MOUNT ASSEMBLY.

The MOUNT ASSEMBLY is a the manufacturer industrial component. Key specifications include criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-648-4848, 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
CHU-1689
NSN: 5340-01-648-4848
FSC: 5340 — Hardware, Commercial
CAGE: 4XH20 — CHUGACH WORLD SERVICES, INC. (USA)
SPECIFICATIONS
special_featuresPART, ASSEMBLY, OR SYSTEM IDENTIFIED AS ESSENTIAL TO WEAPON SYSTEM PERFORMANCE OR OPERATION TO PRESERVE LIFE AND SAFETY OF PERSONNEL
criticality_code_justificationFEAT
NSN5340-01-648-4848
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: CHU-1689 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
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESPART, ASSEMBLY, OR SYSTEM IDENTIFIED AS ESSENTIAL TO WEAPON SYSTEM PERFORMANCE OR OPERATION TO PRESERVE LIFE AND SAFETY OF PERSONNEL
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
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 CHU-1689?
CHU-1689 is a MOUNT ASSEMBLY.
What is the NSN for CHU-1689?
CHU-1689 is cataloged in the U.S. Government catalog under NSN 5340-01-648-4848. This indicates validated use in U.S. government and defense supply chains.
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