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Technical Data Sheet
PartsTable / COMPONENT / B2021
B2021 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The COIL ASSEMBLY,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: TUBE COUPLING, bore_shape: STRAIGHT, nut_height: 0.469 INCHES NOMINAL IN, body_length: 7.000 INCHES NOMINAL IN, corner_shape: CHAMFERED INSIDE LEFT CORNER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-202-3665, 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
B2021
NSN: 5330-00-202-3665
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleTUBE COUPLING
bore_shapeSTRAIGHT
nut_height0.469 INCHES NOMINAL IN
body_length7.000 INCHES NOMINAL IN
corner_shapeCHAMFERED INSIDE LEFT CORNER
bore_diameter15.0 MILLIMETERS NOMINAL MM
hole_diameter0.3438 INCHES NOMINAL FIRST IN
overall_width11.0 MILLIMETERS NOMINAL MM
rating_methodWINDING TURNS ALL COMPONENTS SINGLE WINDING
turn_quantity3-3/4 FIRST COMPONENT SINGLE WINDING
coil_form_typeSOLID SINGLE COMPONENT
NSN5330-00-202-3665
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B2021 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
•
APERTURE DIAMETER: 3.031 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.136 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 3.344 INCHES NOMINAL IN
•
HARDNESS RATING: 55.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-C-6183 TY 2 CL 2 GR B MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: RUBBER SYNTHETIC AND CORK OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE DIAMETER3.031 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.136 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER3.344 INCHES NOMINAL IN
HARDNESS RATING55.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM OVERALL
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-6183 TY 2 CL 2 GR B MIL SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALRUBBER SYNTHETIC AND CORK OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
202S0104A006AInterchangeable
interchangeable cross-reference
interchangeable
3202Interchangeable
interchangeable cross-reference
interchangeable
F3755Interchangeable
interchangeable cross-reference
interchangeable
B2021Interchangeable
interchangeable cross-reference
interchangeable
646-6782-001Interchangeable
interchangeable cross-reference
interchangeable
D2015PC97Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B2021?
B2021 is a COIL ASSEMBLY,RADIO FREQUENCY.
What parts can replace B2021?
There are 9 known substitutes for B2021: 202S0104A006A, 3202, F3755 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B2021?
B2021 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-202-3665. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026