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A2543 — FILTER,RADIO FREQUENCY INTERFERE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A2543: FILTER,RADIO FREQUENCY INTERFERE.

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include height: 2.584 INCHES MINIMUM AND 2.656 INCHES MAXIMUM IN, length: 2.875 INCHES NOMINAL IN, pawl_type: STRAIGHT, body_width: 1.120 INCHES NOMINAL IN, body_height: 0.400 INCHES NOMINAL IN, body_length: 1.120 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-481-9715, 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
A2543
NSN: 5340-00-481-9715
NIINs: 004819715, 010337979
FSC: 5340 — Hardware, Commercial
CAGE: 08844 — MARATHONNORCO AEROSPACE, INC. (USA)
SPECIFICATIONS
height2.584 INCHES MINIMUM AND 2.656 INCHES MAXIMUM IN
length2.875 INCHES NOMINAL IN
pawl_typeSTRAIGHT
body_width1.120 INCHES NOMINAL IN
body_height0.400 INCHES NOMINAL IN
body_length1.120 INCHES NOMINAL IN
features_providedMONOLITHIC AND ADJUSTABLE AND NEGATIVE OUTPUTS AND POSITIVE OUTPUTS
inclosure_materialPLASTIC
storage_temp_range-65.0 TO 125.0 CELSIUS DEGC
operating_temp_range-55.0 TO 85.0 CELSIUS DEGC
input_circuit_pattern2 INPUT
operational_directionRIGHT-HAND
NSN5340-00-481-9715
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A2543 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
•
OPERATIONAL DIRECTION: RIGHT-HAND
•
LENGTH: 2.875 INCHES NOMINAL IN
•
PAWL ACTUATION METHOD: GRIP HANDLE
•
PAWL TYPE: STRAIGHT
•
HEIGHT: 2.584 INCHES MINIMUM AND 2.656 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OPERATIONAL DIRECTIONRIGHT-HAND
LENGTH2.875 INCHES NOMINAL IN
PAWL ACTUATION METHODGRIP HANDLE
PAWL TYPESTRAIGHT
HEIGHT2.584 INCHES MINIMUM AND 2.656 INCHES MAXIMUM IN
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 A2543?
A2543 is a FILTER,RADIO FREQUENCY INTERFERE.
What is the NSN for A2543?
A2543 is cataloged in the U.S. Government catalog under NSN 5340-00-481-9715. 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.