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138-86901 — COVER,PROTECTIVE,DUST AND MOISTU

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

138-86901: COVER,PROTECTIVE,DUST AND MOISTU.

COVER,PROTECTIVE,DUST AND MOISTU. Key specifications include shape: IRREGULAR, material: ALUMINUM ALLOY 2024, overall_length: 2.240 INCHES NOMINAL IN, closed_end_overall_diameter: 0.639 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: DUST COVER. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-686-0625, 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
138-86901
NSN: 5340-01-686-0625
FSC: 5340 — Hardware, Commercial
CAGE: 33269 — AIRCRAFT WHEEL AND BRAKE, LLC DBA CLEVELAND WHEEL AND BRAKE SYSTEMS (USA)
SPECIFICATIONS
shapeIRREGULAR
materialALUMINUM ALLOY 2024
overall_length2.240 INCHES NOMINAL IN
closed_end_overall_diameter0.639 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyDUST COVER
NSN5340-01-686-0625
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 138-86901 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
•
CLOSED END OVERALL DIAMETER: 0.639 INCHES NOMINAL IN
•
SHAPE: IRREGULAR
•
MATERIAL: ALUMINUM ALLOY 2024
TECHNICAL CHARACTERISTICS
CLOSED END OVERALL DIAMETER0.639 INCHES NOMINAL IN
SHAPEIRREGULAR
OVERALL LENGTH2.240 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYDUST COVER
MATERIALALUMINUM ALLOY 2024
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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 138-86901?
138-86901 is a COVER,PROTECTIVE,DUST AND MOISTU.
What is the NSN for 138-86901?
138-86901 is cataloged in the U.S. Government catalog under NSN 5340-01-686-0625. This indicates validated use in U.S. government and defense supply chains.
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