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RD54658-1 — STANDOFF,THREADED,SNAP-IN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

RD54658-1: STANDOFF,THREADED,SNAP-IN.

The STANDOFF,THREADED,SNAP-IN is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_class: 3A RIGHT INTERNAL A, thread_length: 0.500 INCHES NOMINAL RIGHT INTERNAL IN, thread_direction: RIGHT-HAND RIGHT INTERNAL, nominal_thread_size: 0.500 INCHES RIGHT INTERNAL IN, end_item_identification: USED ON THE F-110 ENGINE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-486-1099, 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
RD54658-1
NSN: 5340-01-486-1099
FSC: 5340 — Hardware, Commercial
CAGE: 51663 — HYDRO-AIRE AEROSPACE CORP. DBA LEAR ROMEC DIV LEAR ROMEC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_class3A RIGHT INTERNAL A
thread_length0.500 INCHES NOMINAL RIGHT INTERNAL IN
thread_directionRIGHT-HAND RIGHT INTERNAL
nominal_thread_size0.500 INCHES RIGHT INTERNAL IN
end_item_identificationUSED ON THE F-110 ENGINE
thread_quantity_per_inch28 RIGHT INTERNAL
thread_series_designatorUNEF RIGHT INTERNAL
NSN5340-01-486-1099
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: RD54658-1 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
•
THREAD LENGTH: 0.500 INCHES NOMINAL RIGHT INTERNAL IN
•
THREAD DIRECTION: RIGHT-HAND RIGHT INTERNAL
•
NOMINAL THREAD SIZE: 0.500 INCHES RIGHT INTERNAL IN
•
THREAD CLASS: 3A RIGHT INTERNAL A
•
THREAD QUANTITY PER INCH: 28 RIGHT INTERNAL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
THREAD SERIES DESIGNATOR: UNEF RIGHT INTERNAL
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.500 INCHES NOMINAL RIGHT INTERNAL IN
THREAD DIRECTIONRIGHT-HAND RIGHT INTERNAL
NOMINAL THREAD SIZE0.500 INCHES RIGHT INTERNAL IN
THREAD CLASS3A RIGHT INTERNAL A
END ITEM IDENTIFICATIONUSED ON THE F-110 ENGINE
THREAD QUANTITY PER INCH28 RIGHT INTERNAL
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORUNEF RIGHT INTERNAL
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 RD54658-1?
RD54658-1 is a STANDOFF,THREADED,SNAP-IN.
What is the NSN for RD54658-1?
RD54658-1 is cataloged in the U.S. Government catalog under NSN 5340-01-486-1099. 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.