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3977386 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3977386: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1008, hole_diameter: 0.421 INCHES NOMINAL IN, body_thickness: 0.099 INCHES NOMINAL IN, flange_thickness: 0.099 INCHES NOMINAL IN, inside_corner_radius: 5.500 INCHES NOMINAL IN, securing_device_type: SPECIAL. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-148-2730, 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
3977386
NSN: 5340-01-148-2730
FSC: 5340 — Hardware, Commercial
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 1008
hole_diameter0.421 INCHES NOMINAL IN
body_thickness0.099 INCHES NOMINAL IN
flange_thickness0.099 INCHES NOMINAL IN
inside_corner_radius5.500 INCHES NOMINAL IN
securing_device_typeSPECIAL
bolt_circle_hole_quantity14
cross-sectional_shape_styleOBLONG RECESS
mounting_opening_shape_styleUNTHREADED HOLE
NSN5340-01-148-2730
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3977386 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
•
FLANGE THICKNESS: 0.099 INCHES NOMINAL IN
•
BOLT CIRCLE HOLE QUANTITY: 14
•
INSIDE CORNER RADIUS: 5.500 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: OBLONG RECESS
•
SECURING DEVICE TYPE: SPECIAL
•
MATERIAL: STEEL COMP 1008
•
HOLE DIAMETER: 0.421 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.099 INCHES NOMINAL IN
BOLT CIRCLE HOLE QUANTITY14
INSIDE CORNER RADIUS5.500 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLEOBLONG RECESS
SECURING DEVICE TYPESPECIAL
MATERIALSTEEL COMP 1008
HOLE DIAMETER0.421 INCHES NOMINAL IN
BODY THICKNESS0.099 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 3977386?
3977386 is a COVER,ACCESS.
What is the NSN for 3977386?
3977386 is cataloged in the U.S. Government catalog under NSN 5340-01-148-2730. This indicates validated use in U.S. government and defense supply chains.
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