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Technical Data Sheet
PartsTable / COMPONENT / 457-5728
457-5728 ✓ 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 STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.750 INCHES NOMINAL IN, material: COPPER ALLOY OVERALL, style_designator: INTERNALLY THREADED FULL LENGTH, surface_treatment: CADMIUM OVERALL, width_across_flats: 0.250 INCHES NOMINAL IN, cross-sectional_shape: HEXAGON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-103-5947, 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
457-5728
NSN: 5340-01-103-5947
FSC: 5340
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
length0.750 INCHES NOMINAL IN
materialCOPPER ALLOY OVERALL
style_designatorINTERNALLY THREADED FULL LENGTH
surface_treatmentCADMIUM OVERALL
width_across_flats0.250 INCHES NOMINAL IN
cross-sectional_shapeHEXAGON
NSN5340-01-103-5947
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 457-5728 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
•
STYLE DESIGNATOR: INTERNALLY THREADED FULL LENGTH
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: COPPER ALLOY OVERALL
•
CROSS-SECTIONAL SHAPE: HEXAGON
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
LENGTH: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORINTERNALLY THREADED FULL LENGTH
SURFACE TREATMENTCADMIUM OVERALL
MATERIALCOPPER ALLOY OVERALL
CROSS-SECTIONAL SHAPEHEXAGON
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
LENGTH0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
2323Upgraded Successor
successor cross-reference
successor
43157-050Upgraded Successor
successor cross-reference
successor
86047Upgraded Successor
successor cross-reference
successor
364Upgraded Successor
successor cross-reference
successor
A060195Interchangeable
interchangeable cross-reference
interchangeable
GLD0623Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 457-5728?
457-5728 is a STANDOFF,THREADED,SPACING.
What parts can replace 457-5728?
There are 12 known substitutes for 457-5728: 2323, 43157-050, 86047 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 457-5728?
457-5728 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-103-5947. 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