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401-5216273-1 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

401-5216273-1: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 1.500 INCHES NOMINAL IN, length: 3.150 INCHES NOMINAL IN, material: PLASTIC EPOXY, hole_diameter: 0.271 INCHES MINIMUM AND 0.276 INCHES MAXIMUM IN, body_thickness: 0.090 INCHES NOMINAL IN, special_features: FURNISHED W/TWO SCREWS. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-188-4400, 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
401-5216273-1
NSN: 5340-01-188-4400
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
width1.500 INCHES NOMINAL IN
length3.150 INCHES NOMINAL IN
materialPLASTIC EPOXY
hole_diameter0.271 INCHES MINIMUM AND 0.276 INCHES MAXIMUM IN
body_thickness0.090 INCHES NOMINAL IN
special_featuresFURNISHED W/TWO SCREWS
corner_bevel_length0.120 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, TWO HOLES
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
material_document_and_classificationMIL-P-18177,TY GEE MIL SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-188-4400
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 401-5216273-1 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: 0.598 INCHES NOMINAL IN
•
LENGTH: 3.150 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG LENGTH: 2.656 INCHES NOMINAL IN
•
CORNER BEVEL LENGTH: 0.120 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-18177,TY GEE MIL SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: SPECIAL
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.598 INCHES NOMINAL IN
LENGTH3.150 INCHES NOMINAL IN
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG LENGTH2.656 INCHES NOMINAL IN
CORNER BEVEL LENGTH0.120 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-18177,TY GEE MIL SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPESPECIAL
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH0.250 INCHES NOMINAL IN
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG WIDTH0.312 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
401-4695160 ITEM 101Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 401-5216273-1?
401-5216273-1 is a COVER,ACCESS.
What parts can replace 401-5216273-1?
There is 1 known substitute for 401-5216273-1: 401-4695160 ITEM 101. Substitute compatibility should be verified for your specific system.
What is the NSN for 401-5216273-1?
401-5216273-1 is cataloged in the U.S. Government catalog under NSN 5340-01-188-4400. 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.