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4D-2328 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4D-2328: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, design_type: THREADED, thread_class: 2B, overall_diameter: 0.562 INCHES NOMINAL IN, inside_diameter_length: 0.156 INCHES NOMINAL IN, round_cap_outside_surface_condition: SERRATED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-111-2211, 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
4D-2328
NSN: 5340-00-111-2211
FSC: 5340 — Hardware, Commercial
CAGE: 07661 — SYSTEMS AND ELECTRONICS INC (USA)
SPECIFICATIONS
materialPLASTIC
design_typeTHREADED
thread_class2B
overall_diameter0.562 INCHES NOMINAL IN
inside_diameter_length0.156 INCHES NOMINAL IN
round_cap_outside_surface_conditionSERRATED
thread_size_and_series/type_designator1/2-20 UNF
NSN5340-00-111-2211
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4D-2328 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
•
DESIGN TYPE: THREADED
•
OVERALL DIAMETER: 0.562 INCHES NOMINAL IN
•
THREAD CLASS: 2B
•
MATERIAL: PLASTIC
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1/2-20 UNF
•
INSIDE DIAMETER LENGTH: 0.156 INCHES NOMINAL IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: SERRATED
TECHNICAL CHARACTERISTICS
DESIGN TYPETHREADED
OVERALL DIAMETER0.562 INCHES NOMINAL IN
THREAD CLASS2B
MATERIALPLASTIC
THREAD SIZE AND SERIES/TYPE DESIGNATOR1/2-20 UNF
INSIDE DIAMETER LENGTH0.156 INCHES NOMINAL IN
ROUND CAP OUTSIDE SURFACE CONDITIONSERRATED
SUBSTITUTES & CROSS-REFERENCES 1
81000032Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4D-2328?
4D-2328 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 4D-2328?
There is 1 known substitute for 4D-2328: 81000032. Substitute compatibility should be verified for your specific system.
What is the NSN for 4D-2328?
4D-2328 is cataloged in the U.S. Government catalog under NSN 5340-00-111-2211. 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.