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MAR99-6153 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MAR99-6153: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, width: 0.623 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN, length: 2.375 INCHES NOMINAL IN, material: STEEL COMP 303, thread_size: 0.250, mounting_hole_type: THREADED. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-617-3845, 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
MAR99-6153
NSN: 5340-01-617-3845
FSC: 5340 — Hardware, Commercial
CAGE: 4CXB9 — PARTS TOWN, LLC (USA)
SPECIFICATIONS
shapeRECTANGULAR
width0.623 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
length2.375 INCHES NOMINAL IN
materialSTEEL COMP 303
thread_size0.250
mounting_hole_typeTHREADED
mounting_hole_quantity2
end_item_identification7360015791956
screw_thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
part_name_assigned_by_controlling_agencyPIN, HINGE, DOOR, BOTTOM
NSN5340-01-617-3845
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MAR99-6153 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
•
MOUNTING HOLE QUANTITY: 2
•
LENGTH: 2.375 INCHES NOMINAL IN
•
SHAPE: RECTANGULAR
•
THREAD SIZE: 0.250
•
SCREW THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
WIDTH: 0.623 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY2
LENGTH2.375 INCHES NOMINAL IN
SHAPERECTANGULAR
THREAD SIZE0.250
SCREW THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH0.623 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYPIN, HINGE, DOOR, BOTTOM
END ITEM IDENTIFICATION7360015791956
MATERIALSTEEL COMP 303
MOUNTING HOLE TYPETHREADED
SUBSTITUTES & CROSS-REFERENCES 1
99-6153Reference 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
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FREQUENTLY ASKED QUESTIONS
What is MAR99-6153?
MAR99-6153 is a PLATE,MOUNTING.
What parts can replace MAR99-6153?
There is 1 known substitute for MAR99-6153: 99-6153. Substitute compatibility should be verified for your specific system.
What is the NSN for MAR99-6153?
MAR99-6153 is cataloged in the U.S. Government catalog under NSN 5340-01-617-3845. 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.