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687683 — BRACKET,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

687683: BRACKET,MOUNTING.

The BRACKET,MOUNTING is a the manufacturer industrial component. Key specifications include special_features: ALUMINUM ALLOY,QQ-A-601,CL 3; SULFER ACID,QQ-A-696; 3.344 IN. O/A LG; 1.688 IN.

O/A W; VARIOUS HOLES IN. This part is cataloged in the U.S. Government catalog under NSN 5340-00-344-9653, 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
687683
NSN: 5340-00-344-9653
FSC: 5340 — Hardware, Commercial
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
special_featuresALUMINUM ALLOY,QQ-A-601,CL 3; SULFER ACID,QQ-A-696; 3.344 IN. O/A LG; 1.688 IN. O/A W; VARIOUS HOLES IN
NSN5340-00-344-9653
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 687683 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESALUMINUM ALLOY,QQ-A-601,CL 3; SULFER ACID,QQ-A-696; 3.344 IN. O/A LG; 1.688 IN. O/A W; VARIOUS HOLES IN
SUBSTITUTES & CROSS-REFERENCES 1
806643Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 687683?
687683 is a BRACKET,MOUNTING.
What parts can replace 687683?
There is 1 known substitute for 687683: 806643. Substitute compatibility should be verified for your specific system.
What is the NSN for 687683?
687683 is cataloged in the U.S. Government catalog under NSN 5340-00-344-9653. This indicates validated use in U.S. government and defense supply chains.
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