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401055 — FILTER,RADIO FREQUENCY INTERFERE

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

401055: FILTER,RADIO FREQUENCY INTERFERE.

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: COPPER OVERALL, body_width: 2.970 INCHES MINIMUM AND 3.030 INCHES MAXIMUM IN, body_height: 4.970 INCHES MINIMUM AND 5.030 INCHES MAXIMUM IN, body_length: 3.970 INCHES MINIMUM AND 4.030 INCHES MAXIMUM IN, body_material: METAL, inclosure_type: HERMETICALLY SEALED. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-445-5078, 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→ 401055
NSN: 5330-00-445-5078
NIINs: 004455078, 008366552, 012300983
FSC: 5330 — Packing and Gasket Materials
CAGE: 07700 — TECHNICAL WIRE PRODUCTS, LLC DBA TWP (USA)
SPECIFICATIONS
materialCOPPER OVERALL
body_width2.970 INCHES MINIMUM AND 3.030 INCHES MAXIMUM IN
body_height4.970 INCHES MINIMUM AND 5.030 INCHES MAXIMUM IN
body_length3.970 INCHES MINIMUM AND 4.030 INCHES MAXIMUM IN
body_materialMETAL
inclosure_typeHERMETICALLY SEALED
overall_height6.906 INCHES NOMINAL IN
outside_diameter1.900 INCHES MINIMUM AND 1.920 INCHES MAXIMUM IN
style_designatorRECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
aperture_diameter1.705 INCHES MINIMUM AND 1.725 INCHES MAXIMUM IN
maximum_temp_rise25.0 CELSIUS DEGC
nominal_thread_size0.190 INCHES IN
NSN5330-00-445-5078
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 401055 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
•
CROSS-SECTIONAL THICKNESS: 0.062 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR METAL
•
OUTSIDE DIAMETER: 1.900 INCHES MINIMUM AND 1.920 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 1.705 INCHES MINIMUM AND 1.725 INCHES MAXIMUM IN
•
MATERIAL: COPPER OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.062 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLERECTANGULAR METAL
OUTSIDE DIAMETER1.900 INCHES MINIMUM AND 1.920 INCHES MAXIMUM IN
APERTURE DIAMETER1.705 INCHES MINIMUM AND 1.725 INCHES MAXIMUM IN
MATERIALCOPPER OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
01-0104-0771-05Reference document
Same NSN cross-reference
Reference document — Secondary reference
1203-112-6Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 401055?
401055 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 401055?
There are 2 known substitutes for 401055: 01-0104-0771-05, 1203-112-6. Substitute compatibility should be verified for your specific system.
What is the NSN for 401055?
401055 is cataloged in the U.S. Government catalog under NSN 5330-00-445-5078. 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.