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12941459 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12941459: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, width: 0.440 INCHES MINIMUM AND 0.440 INCHES MINIMUM AND 0.560 INCHES MAXIMUM0.560 INCHES MAXIMUM IN, length: 3.380 INCHES MINIMUM AND 3.380 INCHES MINIMUM AND 3.620 INCHES MAXIMUM3.620 INCHES MAXIMUM IN, material: STEEL OR STEEL COMP 1137 OR STEEL COMP 1020 OR STEEL COMP 1045, thickness: 0.134 INCHES NOMINAL0.134 INCHES NOMINAL IN, thread_size: 0.250-20. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-355-0164, 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
12941459
NSN: 5340-01-355-0164
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
shapeRECTANGULAR
width0.440 INCHES MINIMUM AND 0.440 INCHES MINIMUM AND 0.560 INCHES MAXIMUM0.560 INCHES MAXIMUM IN
length3.380 INCHES MINIMUM AND 3.380 INCHES MINIMUM AND 3.620 INCHES MAXIMUM3.620 INCHES MAXIMUM IN
materialSTEEL OR STEEL COMP 1137 OR STEEL COMP 1020 OR STEEL COMP 1045
thickness0.134 INCHES NOMINAL0.134 INCHES NOMINAL IN
thread_size0.250-20
mounting_hole_typeTHREADED
mounting_hole_diameter0.250 INCHES NOMINAL ALL HOLES IN
mounting_hole_quantity2
end_item_identification2350-01-305-0028
screw_thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
material_document_and_classificationASTM A366 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE
NSN5340-01-355-0164
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12941459 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: 3.380 INCHES MINIMUM AND 3.380 INCHES MINIMUM AND 3.620 INCHES MAXIMUM3.620 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A366 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.250 INCHES NOMINAL ALL HOLES IN
•
SHAPE: RECTANGULAR
•
THREAD SIZE: 0.250-20
•
SCREW THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
WIDTH: 0.440 INCHES MINIMUM AND 0.440 INCHES MINIMUM AND 0.560 INCHES MAXIMUM0.560 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY2
LENGTH3.380 INCHES MINIMUM AND 3.380 INCHES MINIMUM AND 3.620 INCHES MAXIMUM3.620 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A366 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.250 INCHES NOMINAL ALL HOLES IN
SHAPERECTANGULAR
THREAD SIZE0.250-20
SCREW THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH0.440 INCHES MINIMUM AND 0.440 INCHES MINIMUM AND 0.560 INCHES MAXIMUM0.560 INCHES MAXIMUM IN
END ITEM IDENTIFICATION2350-01-305-0028
MATERIALSTEEL OR STEEL COMP 1137 OR STEEL COMP 1020 OR STEEL COMP 1045
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

No substitute or cross-reference records for this part.

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 12941459?
12941459 is a PLATE,MOUNTING.
What is the NSN for 12941459?
12941459 is cataloged in the U.S. Government catalog under NSN 5340-01-355-0164. 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.