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1944020 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1944020: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include hole_diameter: 0.406 INCHES NOMINAL IN, body_thickness: 0.620 INCHES NOMINAL IN, outside_diameter: 6.250 INCHES NOMINAL IN, bolt_circle_diameter: 4.874 INCHES NOMINAL IN, end_item_identification: NSN 2320-01-304-2277 AND NSN 2320-01-304-2278 PLS (PALLETIZED LOADING SYSTEM), cross-sectional_shape_style: FLAT W/OPEN CENTER. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-346-3894, 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
1944020
NSN: 5340-01-346-3894
FSC: 5340 — Hardware, Commercial
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
hole_diameter0.406 INCHES NOMINAL IN
body_thickness0.620 INCHES NOMINAL IN
outside_diameter6.250 INCHES NOMINAL IN
bolt_circle_diameter4.874 INCHES NOMINAL IN
end_item_identificationNSN 2320-01-304-2277 AND NSN 2320-01-304-2278 PLS (PALLETIZED LOADING SYSTEM)
bolt_circle_hole_quantity9
cross-sectional_shape_styleFLAT W/OPEN CENTER
mounting_opening_shape_styleUNTHREADED HOLE
part_name_assigned_by_controlling_agencyADAPTER, CRANKSHAFT PLATE
NSN5340-01-346-3894
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1944020 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: 9
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT W/OPEN CENTER
•
OUTSIDE DIAMETER: 6.250 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 4.874 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.406 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BOLT CIRCLE HOLE QUANTITY9
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLEFLAT W/OPEN CENTER
OUTSIDE DIAMETER6.250 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER4.874 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYADAPTER, CRANKSHAFT PLATE
END ITEM IDENTIFICATIONNSN 2320-01-304-2277 AND NSN 2320-01-304-2278 PLS (PALLETIZED LOADING SYSTEM)
HOLE DIAMETER0.406 INCHES NOMINAL IN
BODY THICKNESS0.620 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
1917140Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1944020?
1944020 is a COVER,ACCESS.
What parts can replace 1944020?
There is 1 known substitute for 1944020: 1917140. Substitute compatibility should be verified for your specific system.
What is the NSN for 1944020?
1944020 is cataloged in the U.S. Government catalog under NSN 5340-01-346-3894. 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.