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425953 — FILTER,RADIO FREQUENCY INTERFERE

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

425953: FILTER,RADIO FREQUENCY INTERFERE.

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: STEEL, end_item_identification: AIRCRAFT MODEL EA-6B, valve_design_control_activity: 81873. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-911-3209, 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
MRO→ MRO_GENERAL→ 425953
NSN: 4820-00-911-3209
NIINs: 009113209, 013028557
FSC: 4820 — Valves, Nonpowered
CAGE: 81873 — WOODWARD HRT INC (USA)
SPECIFICATIONS
materialSTEEL
end_item_identificationAIRCRAFT MODEL EA-6B
valve_design_control_activity81873
NSN4820-00-911-3209
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 425953 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
VALVE DESIGN CONTROL ACTIVITY: 81873
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
VALVE DESIGN CONTROL ACTIVITY81873
END ITEM IDENTIFICATIONUH-1 HELICOPTER
MATERIALSTEEL
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)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 425953?
425953 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 425953?
425953 is cataloged in the U.S. Government catalog under NSN 4820-00-911-3209. 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.