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642AS0786 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

642AS0786: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: ALUMINUM ALLOY, design_type: FRICTION, overall_diameter: 1.212 INCHES NOMINAL IN, surface_treatment: CADMIUM, inside_diameter_length: 0.572 INCHES NOMINAL IN, round_cap_outside_surface_condition: RIBBED. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-078-2599, 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
642AS0786
NSN: 5340-01-078-2599
FSC: 5340 — Hardware, Commercial
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
design_typeFRICTION
overall_diameter1.212 INCHES NOMINAL IN
surface_treatmentCADMIUM
inside_diameter_length0.572 INCHES NOMINAL IN
round_cap_outside_surface_conditionRIBBED
surface_treatment_document_and_classificationQQ-P-416, TYPE 1, CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE
NSN5340-01-078-2599
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 642AS0786 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416, TYPE 1, CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE
•
DESIGN TYPE: FRICTION
•
OVERALL DIAMETER: 1.212 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM
•
MATERIAL: ALUMINUM ALLOY
•
INSIDE DIAMETER LENGTH: 0.572 INCHES NOMINAL IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: RIBBED
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TYPE 1, CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE
DESIGN TYPEFRICTION
OVERALL DIAMETER1.212 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM
MATERIALALUMINUM ALLOY
INSIDE DIAMETER LENGTH0.572 INCHES NOMINAL IN
ROUND CAP OUTSIDE SURFACE CONDITIONRIBBED
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 1
DSM96-19A-1ESame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 642AS0786?
642AS0786 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 642AS0786?
There is 1 known substitute for 642AS0786: DSM96-19A-1E. Substitute compatibility should be verified for your specific system.
What is the NSN for 642AS0786?
642AS0786 is cataloged in the U.S. Government catalog under NSN 5340-01-078-2599. This indicates validated use in U.S. government and defense supply chains.
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