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Technical Data Sheet
875-AL40 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: ALUMINUM, overall_height: 204.24 MILLIMETERS NOMINAL MM, overall_diameter: 204.24 MILLIMETERS NOMINAL MM, end_item_identification: API RT 1004 TANK TRUCK ADAPTOR, round_cap_outside_surface_condition: SMOOTH, part_name_assigned_by_controlling_agency: DUST CAP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-666-7284, 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
875-AL40
NSN: 5340-01-666-7284
FSC: 5340
CAGE: 0W1X6 — OPW ENGINEERED SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM
overall_height204.24 MILLIMETERS NOMINAL MM
overall_diameter204.24 MILLIMETERS NOMINAL MM
end_item_identificationAPI RT 1004 TANK TRUCK ADAPTOR
round_cap_outside_surface_conditionSMOOTH
part_name_assigned_by_controlling_agencyDUST CAP
opening_inside_diameter_for_which_designed171.45 MILLIMETERS NOMINAL MM
NSN5340-01-666-7284
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 875-AL40 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
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 171.45 MILLIMETERS NOMINAL MM
OVERALL DIAMETER: 204.24 MILLIMETERS NOMINAL MM
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
MATERIAL: ALUMINUM
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT204.24 MILLIMETERS NOMINAL MM
OPENING INSIDE DIAMETER FOR WHICH DESIGNED171.45 MILLIMETERS NOMINAL MM
OVERALL DIAMETER204.24 MILLIMETERS NOMINAL MM
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
MATERIALALUMINUM
SPECIAL FEATURESCORROSION RESISTANT;CERTIFIED PER ADR 4.3.4.1.1 UP TO 3 BAR;DIE CAST ALUMINUM;RADIAL CAM AND LUG DESIGN;BUNA-N SEAL;GLASS FILLED NYLON CAMS;LOCKING HOLE FOR WIRE SECURITY SEAL;PRIVATE BRANDING OPTIONAL;WEIGHT 1KG;WORKING TEMPERATURE -40 TO 70 DEGREES CELSIUS KG
PART NAME ASSIGNED BY CONTROLLING AGENCYDUST CAP
END ITEM IDENTIFICATIONAPI RT 1004 TANK TRUCK ADAPTOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
4-3851Interchangeable
interchangeable cross-reference
interchangeable
17-504Interchangeable
interchangeable cross-reference
interchangeable
202100-205RInterchangeable
interchangeable cross-reference
interchangeable
M16WK103-17Interchangeable
interchangeable cross-reference
interchangeable
M16WKR10-205Interchangeable
interchangeable cross-reference
interchangeable
AB0SG017-504Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 875-AL40?
875-AL40 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 875-AL40?
There are 11 known substitutes for 875-AL40: 4-3851, 17-504, 202100-205R and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 875-AL40?
875-AL40 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-666-7284. This indicates validated use in U.S. government and defense supply chains.
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