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MT4ARR2 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 3.254 INCHES NOMINAL IN, length: 5.468 INCHES NOMINAL IN, material: ALUMINUM, fsc_application_data: TEST SET ELECTRONIC, peripheral_shape_style: RECTANGLE, FOUR HOLES, distance_between_holes_along_width: 1.906 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-535-9542, 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
MT4ARR2
NSN: 5340-00-535-9542
FSC: 5340
CAGE: 80058 — JOINT ELECTRONICS TYPE DESIGNATION SYSTEM (USA)
SPECIFICATIONS
width3.254 INCHES NOMINAL IN
length5.468 INCHES NOMINAL IN
materialALUMINUM
fsc_application_dataTEST SET ELECTRONIC
peripheral_shape_styleRECTANGLE, FOUR HOLES
distance_between_holes_along_width1.906 INCHES NOMINAL IN
distance_between_holes_along_length3.906 INCHES NOMINAL IN
NSN5340-00-535-9542
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MT4ARR2 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
•
FSC APPLICATION DATA: TEST SET ELECTRONIC
•
WIDTH: 3.254 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 1.906 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: RECTANGLE, FOUR HOLES
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 3.906 INCHES NOMINAL IN
•
LENGTH: 5.468 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FSC APPLICATION DATATEST SET ELECTRONIC
WIDTH3.254 INCHES NOMINAL IN
MATERIALALUMINUM
DISTANCE BETWEEN HOLES ALONG WIDTH1.906 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLERECTANGLE, FOUR HOLES
DISTANCE BETWEEN HOLES ALONG LENGTH3.906 INCHES NOMINAL IN
LENGTH5.468 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
6137Interchangeable
interchangeable cross-reference
interchangeable
905744Interchangeable
interchangeable cross-reference
interchangeable
8333722Interchangeable
interchangeable cross-reference
interchangeable
7053Interchangeable
interchangeable cross-reference
interchangeable
D83276Interchangeable
interchangeable cross-reference
interchangeable
B553Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MT4ARR2?
MT4ARR2 is a COVER,ACCESS.
What parts can replace MT4ARR2?
There are 17 known substitutes for MT4ARR2: 6137, 905744, 8333722 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MT4ARR2?
MT4ARR2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-535-9542. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026