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627221378-001 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

627221378-001: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, surface_treatment: CHROMATE, securing_device_type: SPECIAL, mounting_opening_shape_style: UNTHREADED HOLE, material_document_and_classification: MIL-A-21180 MIL SPEC SINGLE MATERIAL RESPONSE, surface_treatment_document_and_classification: MIL-C-5541,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-014-4019, 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
627221378-001
NSN: 5340-01-014-4019
FSC: 5340 — Hardware, Commercial
CAGE: 04939 — LOCKHEED MARTIN CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
surface_treatmentCHROMATE
securing_device_typeSPECIAL
mounting_opening_shape_styleUNTHREADED HOLE
material_document_and_classificationMIL-A-21180 MIL SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-C-5541,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE
NSN5340-01-014-4019
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 627221378-001 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-5541,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-A-21180 MIL SPEC SINGLE MATERIAL RESPONSE
•
SECURING DEVICE TYPE: SPECIAL
•
SURFACE TREATMENT: CHROMATE
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-21180 MIL SPEC SINGLE MATERIAL RESPONSE
SECURING DEVICE TYPESPECIAL
SURFACE TREATMENTCHROMATE
MATERIALALUMINUM ALLOY
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: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 627221378-001?
627221378-001 is a COVER,ACCESS.
What is the NSN for 627221378-001?
627221378-001 is cataloged in the U.S. Government catalog under NSN 5340-01-014-4019. This indicates validated use in U.S. government and defense supply chains.
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