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Technical Data Sheet
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146005-1 — Technical Data Sheet

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— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include end_item_identification: ACFT MODEL E3A, general_characteristics_item_description: CRES STEEL AMS 5643 17-4PH CONDITION A. This part is cataloged in the Federal Logistics Information System under NSN 4720-00-990-1678, 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
146005-1
NSN: 4720-00-990-1678
FSC: 4720
CAGE: 36024 — LIBBY POWER SYSTEMS, LLC (USA)
SPECIFICATIONS
end_item_identificationACFT MODEL E3A
general_characteristics_item_descriptionCRES STEEL AMS 5643 17-4PH CONDITION A
NSN4720-00-990-1678
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 146005-1 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
4990InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
26437InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
83977InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
204-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
VF2-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A15203InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 146005-1?
146005-1 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 146005-1?
There are 19 known substitutes for 146005-1: 4990, 26437, 83977 and 16 more. Substitute compatibility should be verified for your specific system.
Is 146005-1 still available?
146005-1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026