PartsTable
Technical Data Sheet
Download PDF

54MS139 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

54MS139: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 4.875 INCHES NOMINAL IN, length: 4.875 INCHES NOMINAL IN, material: PLASTIC, corner_radius: 0.375 INCHES NOMINAL IN, peripheral_shape_style: RECTANGLE, FOUR HOLES, distance_between_holes_along_width: 4.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-562-6288, 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
54MS139
NSN: 5340-00-562-6288
FSC: 5340 — Hardware, Commercial
CAGE: 1MY97 — AGILENT TECHNOLOGIES, INC. DIV AGILENT TECHNOLOGIES HEADQUARTERS (USA)
SPECIFICATIONS
width4.875 INCHES NOMINAL IN
length4.875 INCHES NOMINAL IN
materialPLASTIC
corner_radius0.375 INCHES NOMINAL IN
peripheral_shape_styleRECTANGLE, FOUR HOLES
distance_between_holes_along_width4.125 INCHES NOMINAL IN
distance_between_holes_along_length4.125 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_width0.375 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_length0.375 INCHES NOMINAL IN
NSN5340-00-562-6288
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 54MS139 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: 0.375 INCHES NOMINAL IN
•
CORNER RADIUS: 0.375 INCHES NOMINAL IN
•
LENGTH: 4.875 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 4.125 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 4.125 INCHES NOMINAL IN
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH: 0.375 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: RECTANGLE, FOUR HOLES
•
WIDTH: 4.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.375 INCHES NOMINAL IN
CORNER RADIUS0.375 INCHES NOMINAL IN
LENGTH4.875 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH4.125 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH4.125 INCHES NOMINAL IN
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH0.375 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLERECTANGLE, FOUR HOLES
WIDTH4.875 INCHES NOMINAL IN
MATERIALPLASTIC
SUBSTITUTES & CROSS-REFERENCES 1
G99ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 54MS139?
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 54MS139?
54MS139 is a COVER,ACCESS.
What parts can replace 54MS139?
There is 1 known substitute for 54MS139: G99A. Substitute compatibility should be verified for your specific system.
What is the NSN for 54MS139?
54MS139 is cataloged in the U.S. Government catalog under NSN 5340-00-562-6288. 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 — 54MS139