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P18743 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

P18743: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: STEEL COMP 1018, design_type: THREADED, thread_class: 2B, overall_diameter: 2.380 INCHES NOMINAL IN, material_document_and_classification: SAE 1018 ASSN STD SINGLE MATERIAL RESPONSE, thread_size_and_series/type_designator: 2.250-20 UNF. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-334-8716, 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
P18743
NSN: 5340-01-334-8716
FSC: 5340 — Hardware, Commercial
CAGE: 1YHH8 — JLG INDUSTRIES, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 1018
design_typeTHREADED
thread_class2B
overall_diameter2.380 INCHES NOMINAL IN
material_document_and_classificationSAE 1018 ASSN STD SINGLE MATERIAL RESPONSE
thread_size_and_series/type_designator2.250-20 UNF
NSN5340-01-334-8716
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: P18743 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: 2.380 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1018 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD CLASS: 2B
•
MATERIAL: STEEL COMP 1018
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 2.250-20 UNF
TECHNICAL CHARACTERISTICS
DESIGN TYPETHREADED
OVERALL DIAMETER2.380 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1018 ASSN STD SINGLE MATERIAL RESPONSE
THREAD CLASS2B
MATERIALSTEEL COMP 1018
THREAD SIZE AND SERIES/TYPE DESIGNATOR2.250-20 UNF
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 P18743?
P18743 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for P18743?
P18743 is cataloged in the U.S. Government catalog under NSN 5340-01-334-8716. 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.