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88-21870 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

88-21870: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 5052, surface_treatment: PAINT, securing_device_type: SPECIAL, material_document_and_classification: ASTM B209 ASSN STD SINGLE MATERIAL RESPONSE, part_name_assigned_by_controlling_agency: TOP, CONTROL BOX, surface_treatment_document_and_classification: MIL-C-53072 MIL SPEC SINGLE TREATMENT RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-528-8653, 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
88-21870
NSN: 5340-01-528-8653
FSC: 5340 — Hardware, Commercial
CAGE: 30554 — DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 5052
surface_treatmentPAINT
securing_device_typeSPECIAL
material_document_and_classificationASTM B209 ASSN STD SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agencyTOP, CONTROL BOX
surface_treatment_document_and_classificationMIL-C-53072 MIL SPEC SINGLE TREATMENT RESPONSE
NSN5340-01-528-8653
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 88-21870 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: MIL-C-53072 MIL SPEC SINGLE TREATMENT RESPONSE
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B209 ASSN STD SINGLE MATERIAL RESPONSE
•
SECURING DEVICE TYPE: SPECIAL
•
SURFACE TREATMENT: PAINT
•
MATERIAL: ALUMINUM ALLOY 5052
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-53072 MIL SPEC SINGLE TREATMENT RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B209 ASSN STD SINGLE MATERIAL RESPONSE
SECURING DEVICE TYPESPECIAL
SURFACE TREATMENTPAINT
PART NAME ASSIGNED BY CONTROLLING AGENCYTOP, CONTROL BOX
MATERIALALUMINUM ALLOY 5052
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 88-21870?
88-21870 is a COVER,ACCESS.
What is the NSN for 88-21870?
88-21870 is cataloged in the U.S. Government catalog under NSN 5340-01-528-8653. This indicates validated use in U.S. government and defense supply chains.
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