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203945A — LOCKING PLATE,NUT AND BOLT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

203945A: LOCKING PLATE,NUT AND BOLT.

The LOCKING PLATE,NUT AND BOLT is a the manufacturer industrial component. Key specifications include width: 0.875 INCHES NOMINAL IN, material: STEEL, plate_thickness: 0.062 INCHES NOMINAL IN, distance_between_mounting_hole_centers: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-705-2859, 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
203945A
NSN: 5340-00-705-2859
FSC: 5340 — Hardware, Commercial
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
width0.875 INCHES NOMINAL IN
materialSTEEL
plate_thickness0.062 INCHES NOMINAL IN
distance_between_mounting_hole_centers1.000 INCHES NOMINAL IN
NSN5340-00-705-2859
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 203945A 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
•
PLATE THICKNESS: 0.062 INCHES NOMINAL IN
•
DISTANCE BETWEEN MOUNTING HOLE CENTERS: 1.000 INCHES NOMINAL IN
•
WIDTH: 0.875 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.062 INCHES NOMINAL IN
DISTANCE BETWEEN MOUNTING HOLE CENTERS1.000 INCHES NOMINAL IN
WIDTH0.875 INCHES NOMINAL IN
MATERIALSTEEL
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
559D1-0514Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 203945A?
203945A is a LOCKING PLATE,NUT AND BOLT.
What parts can replace 203945A?
There is 1 known substitute for 203945A: 559D1-0514. Substitute compatibility should be verified for your specific system.
What is the NSN for 203945A?
203945A is cataloged in the U.S. Government catalog under NSN 5340-00-705-2859. 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.