PartsTable
Technical Data Sheet
Download PDF

7-511171020-21 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7-511171020-21: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 9.720 INCHES NOMINAL IN, length: 5.980 INCHES NOMINAL IN, corner_radius: 0.250 INCHES NOMINAL IN, peripheral_shape_style: RECTANGLE, FOUR HOLES, end_item_identification: 1520-01-355-8250, distance_between_holes_along_width: 8.620 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-490-1942, 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
7-511171020-21
NSN: 5340-01-490-1942
FSC: 5340 — Hardware, Commercial
CAGE: 8V613 — THE BOEING COMPANY (USA)
SPECIFICATIONS
width9.720 INCHES NOMINAL IN
length5.980 INCHES NOMINAL IN
corner_radius0.250 INCHES NOMINAL IN
peripheral_shape_styleRECTANGLE, FOUR HOLES
end_item_identification1520-01-355-8250
distance_between_holes_along_width8.620 INCHES NOMINAL IN
distance_between_holes_along_length4.880 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyCOVER ASSEMBLY,FOD
distance_from_first_hole_centerline_to_end_along_width0.550 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_length0.550 INCHES NOMINAL IN
NSN5340-01-490-1942
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7-511171020-21 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: 0.550 INCHES NOMINAL IN
•
CORNER RADIUS: 0.250 INCHES NOMINAL IN
•
LENGTH: 5.980 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 4.880 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 8.620 INCHES NOMINAL IN
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH: 0.550 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: RECTANGLE, FOUR HOLES
•
WIDTH: 9.720 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.550 INCHES NOMINAL IN
CORNER RADIUS0.250 INCHES NOMINAL IN
LENGTH5.980 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH4.880 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH8.620 INCHES NOMINAL IN
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH0.550 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLERECTANGLE, FOUR HOLES
WIDTH9.720 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYCOVER ASSEMBLY,FOD
END ITEM IDENTIFICATION1520-01-355-8250
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
7-511171020Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
Ready to buy 7-511171020-21?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 7-511171020-21?
7-511171020-21 is a COVER,ACCESS.
What parts can replace 7-511171020-21?
There is 1 known substitute for 7-511171020-21: 7-511171020. Substitute compatibility should be verified for your specific system.
What is the NSN for 7-511171020-21?
7-511171020-21 is cataloged in the U.S. Government catalog under NSN 5340-01-490-1942. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 7-511171020-21

✓ 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.