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639AS3893 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

639AS3893: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 1.220 INCHES NOMINAL IN, length: 1.470 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN, material: STEEL COMP 1009 OR STEEL, inside_width: 1.360 INCHES NOMINAL IN, body_thickness: 0.016 INCHES NOMINAL IN, flange_thickness: 0.016 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-285-0563, 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
639AS3893
NSN: 5340-01-285-0563
FSC: 5340 — Hardware, Commercial
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
width1.220 INCHES NOMINAL IN
length1.470 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN
materialSTEEL COMP 1009 OR STEEL
inside_width1.360 INCHES NOMINAL IN
body_thickness0.016 INCHES NOMINAL IN
flange_thickness0.016 INCHES NOMINAL IN
peripheral_shape_styleRECTANGLE, NO HOLES
first_recess_inside_height0.133 INCHES NOMINAL IN
material_document_and_classificationASTM A319 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A619 ASSN STD 2ND MATERIAL RESPONSE
NSN5340-01-285-0563
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 639AS3893 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
•
INSIDE WIDTH: 1.360 INCHES NOMINAL IN
•
LENGTH: 1.470 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN
•
FLANGE THICKNESS: 0.016 INCHES NOMINAL IN
•
FIRST RECESS INSIDE HEIGHT: 0.133 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A319 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A619 ASSN STD 2ND MATERIAL RESPONSE
•
PERIPHERAL SHAPE STYLE: RECTANGLE, NO HOLES
•
WIDTH: 1.220 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1009 OR STEEL
TECHNICAL CHARACTERISTICS
INSIDE WIDTH1.360 INCHES NOMINAL IN
LENGTH1.470 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN
FLANGE THICKNESS0.016 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT0.133 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A319 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A619 ASSN STD 2ND MATERIAL RESPONSE
PERIPHERAL SHAPE STYLERECTANGLE, NO HOLES
WIDTH1.220 INCHES NOMINAL IN
MATERIALSTEEL COMP 1009 OR STEEL
BODY THICKNESS0.016 INCHES NOMINAL IN
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)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 639AS3893?
639AS3893 is a COVER,ACCESS.
What is the NSN for 639AS3893?
639AS3893 is cataloged in the U.S. Government catalog under NSN 5340-01-285-0563. This indicates validated use in U.S. government and defense supply chains.
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