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821876-1 — FILTER,RADIO FREQUENCY INTERFERE

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

821876-1: FILTER,RADIO FREQUENCY INTERFERE.

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT, body_width: 2.110 INCHES MINIMUM AND 2.172 INCHES MAXIMUM IN, seal_width: 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN, body_height: 2.844 INCHES MINIMUM AND 2.906 INCHES MAXIMUM IN, body_length: 4.344 INCHES MINIMUM AND 4.406 INCHES MAXIMUM IN, construction: SOLID. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-987-0852, 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→ 821876-1
NSN: 5330-00-987-0852
NIINs: 009870852, 011296261
FSC: 5330 — Packing and Gasket Materials
CAGE: 80206 — NAVAL AIR DEVELOPMENT CENTER WARMINSTER NAVAIRSYSCOM HQ (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
body_width2.110 INCHES MINIMUM AND 2.172 INCHES MAXIMUM IN
seal_width0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
body_height2.844 INCHES MINIMUM AND 2.906 INCHES MAXIMUM IN
body_length4.344 INCHES MINIMUM AND 4.406 INCHES MAXIMUM IN
constructionSOLID
inclosure_typeENCASED
overall_length6.500 INCHES NOMINAL IN
style_designatorRECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
housing_bore_diameter1.623 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN
accommodated_shaft_diameter1.122 INCHES MINIMUM AND 1.228 INCHES MAXIMUM IN
cross-sectional_shape_styleSINGLE LIP
NSN5330-00-987-0852
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 821876-1 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
•
SEAL WIDTH: 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
•
HOUSING BORE DIAMETER: 1.623 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
•
ACCOMMODATED SHAFT DIAMETER: 1.122 INCHES MINIMUM AND 1.228 INCHES MAXIMUM IN
•
MATERIAL: STEEL CORROSION RESISTING SPRING
•
CONSTRUCTION: SOLID
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
HOUSING BORE DIAMETER1.623 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
ACCOMMODATED SHAFT DIAMETER1.122 INCHES MINIMUM AND 1.228 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING SPRING
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
CONSTRUCTIONSOLID
SUBSTITUTES & CROSS-REFERENCES 1
9625LPDReference document
Same NSN cross-reference
Reference document — Design control — primary 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 821876-1?
821876-1 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 821876-1?
There is 1 known substitute for 821876-1: 9625LPD. Substitute compatibility should be verified for your specific system.
What is the NSN for 821876-1?
821876-1 is cataloged in the U.S. Government catalog under NSN 5330-00-987-0852. This indicates validated use in U.S. government and defense supply chains.
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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.