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1303907 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1303907: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 11.000 INCHES NOMINAL IN, length: 18.000 INCHES NOMINAL IN, material: STEEL, inside_width: 8.500 INCHES NOMINAL IN, corner_radius: 0.328 INCHES NOMINAL IN, inside_length: 16.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-363-8040, 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
1303907
NSN: 5340-00-363-8040
FSC: 5340 — Hardware, Commercial
CAGE: 019L2 — ESNA, LLC (USA)
SPECIFICATIONS
width11.000 INCHES NOMINAL IN
length18.000 INCHES NOMINAL IN
materialSTEEL
inside_width8.500 INCHES NOMINAL IN
corner_radius0.328 INCHES NOMINAL IN
inside_length16.000 INCHES NOMINAL IN
body_thickness0.259 INCHES NOMINAL IN
inverted_radius1.750 INCHES NOMINAL IN
flange_thickness0.330 INCHES NOMINAL IN
inside_corner_radius1.500 INCHES NOMINAL IN
securing_device_typeTHREADED FASTENER
peripheral_shape_styleRECTANGLE, IRREGULAR ENDS, FOUR HOLES
NSN5340-00-363-8040
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1303907 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
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH: 2.884 INCHES NOMINAL IN
•
INSIDE WIDTH: 8.500 INCHES NOMINAL IN
•
CORNER RADIUS: 0.328 INCHES NOMINAL IN
•
LENGTH: 18.000 INCHES NOMINAL IN
•
INSIDE LENGTH: 16.000 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 3.589 INCHES MINIMUM AND 4.236 INCHES MAXIMUM IN
•
FLANGE THICKNESS: 0.330 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 1.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH2.884 INCHES NOMINAL IN
INSIDE WIDTH8.500 INCHES NOMINAL IN
CORNER RADIUS0.328 INCHES NOMINAL IN
LENGTH18.000 INCHES NOMINAL IN
INSIDE LENGTH16.000 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH3.589 INCHES MINIMUM AND 4.236 INCHES MAXIMUM IN
FLANGE THICKNESS0.330 INCHES NOMINAL IN
INSIDE CORNER RADIUS1.500 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT2.388 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH3.133 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
13039-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
5159440Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1303907?
1303907 is a COVER,ACCESS.
What parts can replace 1303907?
There are 2 known substitutes for 1303907: 13039-7, 5159440. Substitute compatibility should be verified for your specific system.
What is the NSN for 1303907?
1303907 is cataloged in the U.S. Government catalog under NSN 5340-00-363-8040. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.