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A-1856 — FILTER,RADIO FREQUENCY INTERFERE

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

A-1856: FILTER,RADIO FREQUENCY INTERFERE.

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include body_width: 2.000 INCHES NOMINAL IN, body_height: 1.125 INCHES NOMINAL IN, body_length: 2.000 INCHES NOMINAL IN, body_material: METAL, inclosure_type: ENCASED, overall_length: 2.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-292-6004, 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→ A-1856
NSN: 5330-00-292-6004
NIINs: 002926004, 010523734, 012876102, 015195250, 015423610, 016542500
FSC: 5330 — Packing and Gasket Materials
CAGE: 97576 — LENZ INC DBA THE LENZ COMPANY (USA)
SPECIFICATIONS
body_width2.000 INCHES NOMINAL IN
body_height1.125 INCHES NOMINAL IN
body_length2.000 INCHES NOMINAL IN
body_materialMETAL
inclosure_typeENCASED
overall_length2.750 INCHES NOMINAL IN
special_featuresOCP, WITH BABY GREEN 67204 AND BLACK 67138
style_designatorRECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
attachment_methodHOOK FASTENER TAPE
features_providedEMBROIDERED
maximum_temp_rise20.0 CELSIUS DEGC
design_designation20TH AVIATION BRIGADE
NSN5330-00-292-6004
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A-1856 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESCROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200
SUBSTITUTES & CROSS-REFERENCES 1
5331PL1478683Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A-1856?
A-1856 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace A-1856?
There is 1 known substitute for A-1856: 5331PL1478683. Substitute compatibility should be verified for your specific system.
What is the NSN for A-1856?
A-1856 is cataloged in the U.S. Government catalog under NSN 5330-00-292-6004. 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.