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M109.15.203 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

M109.15.203: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, width: 1.810 INCHES NOMINAL1.810 INCHES NOMINAL IN, length: 2.719 INCHES NOMINAL2.719 INCHES NOMINAL IN, material: STEEL, thickness: 0.185 INCHES NOMINAL0.185 INCHES NOMINAL IN, special_features: MOUNTING CONFIGURATION: 2 HOLES. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-981-6900, 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
M109.15.203
NSN: 5340-00-981-6900
FSC: 5340 — Hardware, Commercial
CAGE: A3QPJ
SPECIFICATIONS
shapeRECTANGULAR
width1.810 INCHES NOMINAL1.810 INCHES NOMINAL IN
length2.719 INCHES NOMINAL2.719 INCHES NOMINAL IN
materialSTEEL
thickness0.185 INCHES NOMINAL0.185 INCHES NOMINAL IN
special_featuresMOUNTING CONFIGURATION: 2 HOLES
features_providedRAISED SURFACE
surface_treatmentPHOSPHATE MANGANESE
mounting_hole_typeUNTHREADED
raised_surface_width0.250 INCHES NOMINAL IN
raised_surface_height0.315 INCHES NOMINAL IN
raised_surface_length1.375 INCHES NOMINAL IN
NSN5340-00-981-6900
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M109.15.203 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
•
RAISED SURFACE WIDTH: 0.250 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
•
LENGTH: 2.719 INCHES NOMINAL2.719 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-P-16232, TY M, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE
•
RAISED SURFACE HEIGHT: 0.315 INCHES NOMINAL IN
•
RAISED SURFACE LENGTH: 1.375 INCHES NOMINAL IN
•
MOUNTING HOLE DIAMETER: 0.266 INCHES NOMINAL ALL HOLES IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY2
RAISED SURFACE WIDTH0.250 INCHES NOMINAL IN
MATERIAL HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
LENGTH2.719 INCHES NOMINAL2.719 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-16232, TY M, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE
RAISED SURFACE HEIGHT0.315 INCHES NOMINAL IN
RAISED SURFACE LENGTH1.375 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.266 INCHES NOMINAL ALL HOLES IN
SHAPERECTANGULAR
FEATURES PROVIDEDRAISED SURFACE
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
1025-981-6900Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 M109.15.203?
M109.15.203 is a PLATE,MOUNTING.
What parts can replace M109.15.203?
There is 1 known substitute for M109.15.203: 1025-981-6900. Substitute compatibility should be verified for your specific system.
What is the NSN for M109.15.203?
M109.15.203 is cataloged in the U.S. Government catalog under NSN 5340-00-981-6900. 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.