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7521811 — COIL,RADIO FREQUENCY

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

7521811: COIL,RADIO FREQUENCY.

The COIL,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, taper_length: 0.063 INCHES MAXIMUM IN, bb_end_radius: 0.016 INCHES NOMINAL IN, bore_diameter: 0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN, overall_length: 2.906 INCHES NOMINAL IN, aa_end_diameter: 0.665 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-752-1811, 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
7521811
NSN: 2805-00-752-1811
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialCOPPER ALLOY
taper_length0.063 INCHES MAXIMUM IN
bb_end_radius0.016 INCHES NOMINAL IN
bore_diameter0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN
overall_length2.906 INCHES NOMINAL IN
aa_end_diameter0.665 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN
bore_counterboreNOT INCLUDED
bore_countersinkINCLUDED
outside_diameter0.6885 INCHES MINIMUM AND 0.6890 INCHES MAXIMUM IN
style_designatorSTEPPED-STEPPED TAPERED SHANK END
countersink_length0.040 INCHES MAXIMUM IN
countersink_locationAA END AND BB END
NSN2805-00-752-1811
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COIL,RADIO FREQUENCY TITLE COMPONENT PN 7521811 MFR COIL,RADIO FREQUENCY
KEY FEATURES
•
SHOULDER SECOND FILLET RADIUS: 0.031 INCHES NOMINAL IN
•
COUNTERSINK ANGLE IN DEG: 45.0
•
FSC APPLICATION DATA: ENGINE,GASOLINE,NONAIRCRAFT
•
AA END CHAMFER ANGLE IN DEG: 45.0
•
AA END CHAMFER LENGTH: 0.016 INCHES NOMINAL IN
•
MAJOR DIAMETER LENGTH: 2.094 INCHES NOMINAL IN
•
TAPER MINOR DIAMETER: 0.684 INCHES MINIMUM AND 0.686 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: STEPPED-STEPPED TAPERED SHANK END
TECHNICAL CHARACTERISTICS
SHOULDER SECOND FILLET RADIUS0.031 INCHES NOMINAL IN
COUNTERSINK ANGLE IN DEG45.0
FSC APPLICATION DATAENGINE,GASOLINE,NONAIRCRAFT
AA END CHAMFER ANGLE IN DEG45.0
AA END CHAMFER LENGTH0.016 INCHES NOMINAL IN
MAJOR DIAMETER LENGTH2.094 INCHES NOMINAL IN
TAPER MINOR DIAMETER0.684 INCHES MINIMUM AND 0.686 INCHES MAXIMUM IN
STYLE DESIGNATORSTEPPED-STEPPED TAPERED SHANK END
OVERALL LENGTH2.906 INCHES NOMINAL IN
BORE COUNTERBORENOT INCLUDED
SUBSTITUTES & CROSS-REFERENCES 2
678A4Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
913572Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7521811?
7521811 is a COIL,RADIO FREQUENCY.
What parts can replace 7521811?
There are 2 known substitutes for 7521811: 678A4, 913572. Substitute compatibility should be verified for your specific system.
What is the NSN for 7521811?
7521811 is cataloged in the U.S. Government catalog under NSN 2805-00-752-1811. 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.