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S1503BC — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

S1503BC: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include hole_diameter: 0.3437 INCHES NOMINAL IN, body_thickness: 0.4400 INCHES NOMINAL IN, bolt_circle_diameter: 2.1300 INCHES NOMINAL IN, securing_device_type: SPECIAL, peripheral_shape_style: ROUND, MULTI HOLES, cross-sectional_shape_style: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-421-7507, 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
S1503BC
NSN: 5340-01-421-7507
FSC: 5340 — Hardware, Commercial
CAGE: 59180 — CIRCOR PUMPS NORTH AMERICA LLC (USA)
SPECIFICATIONS
hole_diameter0.3437 INCHES NOMINAL IN
body_thickness0.4400 INCHES NOMINAL IN
bolt_circle_diameter2.1300 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleROUND, MULTI HOLES
bolt_circle_hole_quantity4
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
NSN5340-01-421-7507
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S1503BC 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
•
BOLT CIRCLE HOLE QUANTITY: 4
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: SPECIAL
•
BOLT CIRCLE DIAMETER: 2.1300 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND, MULTI HOLES
•
HOLE DIAMETER: 0.3437 INCHES NOMINAL IN
•
BODY THICKNESS: 0.4400 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BOLT CIRCLE HOLE QUANTITY4
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPESPECIAL
BOLT CIRCLE DIAMETER2.1300 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
HOLE DIAMETER0.3437 INCHES NOMINAL IN
BODY THICKNESS0.4400 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 S1503BC?
S1503BC is a COVER,ACCESS.
What is the NSN for S1503BC?
S1503BC is cataloged in the U.S. Government catalog under NSN 5340-01-421-7507. This indicates validated use in U.S. government and defense supply chains.
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