PartsTable
Technical Data Sheet
Download PDF

EMC940004 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

EMC940004: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 24.2500 INCHES NOMINAL IN, length: 50.5000 INCHES NOMINAL IN, material: STEEL COMP 1009, body_thickness: 0.0600 INCHES NOMINAL IN, special_features: THER ARE FOURTEEN SCREWS AND RETAINERS; ALONG WITH GASKET,SPONGE RUBBER, surface_treatment: PAINT. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-434-8039, 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
EMC940004
NSN: 5340-01-434-8039
FSC: 5340 — Hardware, Commercial
CAGE: 1Z292 — ELECTROMET CORPORATION DBA ELECTROMET CORP (USA)
SPECIFICATIONS
width24.2500 INCHES NOMINAL IN
length50.5000 INCHES NOMINAL IN
materialSTEEL COMP 1009
body_thickness0.0600 INCHES NOMINAL IN
special_featuresTHER ARE FOURTEEN SCREWS AND RETAINERS; ALONG WITH GASKET,SPONGE RUBBER
surface_treatmentPAINT
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, MULTI HOLES
hole_quantity_along_width6
hole_quantity_along_length8
cross-sectional_shape_styleFLAT
distance_between_holes_along_width7.5000 INCHES NOMINAL IN
NSN5340-01-434-8039
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: EMC940004 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: 0.7500 INCHES NOMINAL IN
•
LENGTH: 50.5000 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 9.8000 INCHES NOMINAL IN
•
HOLE QUANTITY ALONG LENGTH: 8
•
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG LENGTH: 9.8000 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 7.5000 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-A-366 ASSN STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.7500 INCHES NOMINAL IN
LENGTH50.5000 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE
DISTANCE BETWEEN HOLES ALONG LENGTH9.8000 INCHES NOMINAL IN
HOLE QUANTITY ALONG LENGTH8
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG LENGTH9.8000 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH7.5000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A-366 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPESPECIAL
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
A3245846Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy EMC940004?
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 EMC940004?
EMC940004 is a COVER,ACCESS.
What parts can replace EMC940004?
There is 1 known substitute for EMC940004: A3245846. Substitute compatibility should be verified for your specific system.
What is the NSN for EMC940004?
EMC940004 is cataloged in the U.S. Government catalog under NSN 5340-01-434-8039. 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 — EMC940004

✓ 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.