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618-049-001 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

618-049-001: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: ALUMINUM, design_type: THREADED, thread_class: 2B, special_features: 0.125 IN. DIA BEAD CHAIN,2.500 IN.

LG ATTACHED IN, width_across_flats: 0.562 INCHES NOMINAL IN, thread_size_and_series/type_designator: 1/2-28 UNEF. This part is cataloged in the U.S. Government catalog under NSN 5340-01-070-1232, 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
618-049-001
NSN: 5340-01-070-1232
FSC: 5340 — Hardware, Commercial
CAGE: 26055 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV FLUID SYSTEMS DIVISION (USA)
SPECIFICATIONS
materialALUMINUM
design_typeTHREADED
thread_class2B
special_features0.125 IN. DIA BEAD CHAIN,2.500 IN. LG ATTACHED IN
width_across_flats0.562 INCHES NOMINAL IN
thread_size_and_series/type_designator1/2-28 UNEF
NSN5340-01-070-1232
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 618-049-001 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
•
WIDTH ACROSS FLATS: 0.562 INCHES NOMINAL IN
•
DESIGN TYPE: THREADED
•
THREAD CLASS: 2B
•
MATERIAL: ALUMINUM
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1/2-28 UNEF
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.562 INCHES NOMINAL IN
DESIGN TYPETHREADED
SPECIAL FEATURES0.125 IN. DIA BEAD CHAIN,2.500 IN. LG ATTACHED IN
THREAD CLASS2B
MATERIALALUMINUM
THREAD SIZE AND SERIES/TYPE DESIGNATOR1/2-28 UNEF
SUBSTITUTES & CROSS-REFERENCES 1
33PC102-1Reference document
Same NSN cross-reference
Reference document — Secondary 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 618-049-001?
618-049-001 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 618-049-001?
There is 1 known substitute for 618-049-001: 33PC102-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 618-049-001?
618-049-001 is cataloged in the U.S. Government catalog under NSN 5340-01-070-1232. 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.