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74201739 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

74201739: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include design_type: FRICTION, overall_diameter: 0.625 INCHES NOMINAL IN, special_features: OVERALL LENGTH IS 0.58 INCHES IN, width_across_flats: 0.500 INCHES NOMINAL IN, end_item_identification: 1015015984568, round_cap_outside_surface_condition: SMOOTH. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-618-4974, 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
74201739
NSN: 5340-01-618-4974
FSC: 5340 — Hardware, Commercial
CAGE: 0BFA5 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL (USA)
SPECIFICATIONS
design_typeFRICTION
overall_diameter0.625 INCHES NOMINAL IN
special_featuresOVERALL LENGTH IS 0.58 INCHES IN
width_across_flats0.500 INCHES NOMINAL IN
end_item_identification1015015984568
round_cap_outside_surface_conditionSMOOTH
part_name_assigned_by_controlling_agencyCAP-PLUG,PROTECTIVE
NSN5340-01-618-4974
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 74201739 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: 0.500 INCHES NOMINAL IN
•
DESIGN TYPE: FRICTION
•
OVERALL DIAMETER: 0.625 INCHES NOMINAL IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.500 INCHES NOMINAL IN
DESIGN TYPEFRICTION
OVERALL DIAMETER0.625 INCHES NOMINAL IN
SPECIAL FEATURESOVERALL LENGTH IS 0.58 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYCAP-PLUG,PROTECTIVE
END ITEM IDENTIFICATION1015015984568
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
SUBSTITUTES & CROSS-REFERENCES 1
13034092Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 74201739?
74201739 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 74201739?
There is 1 known substitute for 74201739: 13034092. Substitute compatibility should be verified for your specific system.
What is the NSN for 74201739?
74201739 is cataloged in the U.S. Government catalog under NSN 5340-01-618-4974. 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.