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16B5519-11 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

16B5519-11: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 21.690 INCHES NOMINAL IN, length: 24.960 INCHES NOMINAL IN, material: ALUMINUM ALLOY 2024, body_thickness: 0.100 INCHES NOMINAL IN, special_features: GUN LH ACCESS, securing_device_type: THREADED FASTENER. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-076-8983, 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
16B5519-11
NSN: 5340-01-076-8983
FSC: 5340 — Hardware, Commercial
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
width21.690 INCHES NOMINAL IN
length24.960 INCHES NOMINAL IN
materialALUMINUM ALLOY 2024
body_thickness0.100 INCHES NOMINAL IN
special_featuresGUN LH ACCESS
securing_device_typeTHREADED FASTENER
peripheral_shape_styleRECTANGLE, MULTI HOLES
hole_quantity_along_width8
hole_quantity_along_length9
cross-sectional_shape_styleFLAT
distance_between_holes_along_length2.460 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_width12.370 INCHES NOMINAL IN
NSN5340-01-076-8983
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 16B5519-11 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: 12.370 INCHES NOMINAL IN
•
LENGTH: 24.960 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 2.460 INCHES NOMINAL IN
•
HOLE QUANTITY ALONG LENGTH: 9
•
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG LENGTH: 11.310 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: THREADED FASTENER
•
HOLE QUANTITY ALONG WIDTH: 8
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH12.370 INCHES NOMINAL IN
LENGTH24.960 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH2.460 INCHES NOMINAL IN
HOLE QUANTITY ALONG LENGTH9
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG LENGTH11.310 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPETHREADED FASTENER
HOLE QUANTITY ALONG WIDTH8
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH13.500 INCHES NOMINAL IN
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG WIDTH2.980 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 1
5340PL1542076Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 16B5519-11?
16B5519-11 is a COVER,ACCESS.
What parts can replace 16B5519-11?
There is 1 known substitute for 16B5519-11: 5340PL1542076. Substitute compatibility should be verified for your specific system.
What is the NSN for 16B5519-11?
16B5519-11 is cataloged in the U.S. Government catalog under NSN 5340-01-076-8983. 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.