PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DC-3Cap,protective,dust and Moisture

Niagara Plastics L.l.c. · NSN 5340-01-178-7855 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-178-7855 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-178-7855. Primary manufacturer part number: DC-3.
Features
  • Cap,protective,dust and Moisture — FSC 5340
  • Thread Class: 2B
  • Round Cap Outside Surface Condition: RIBBED
  • Material: PLASTIC, POLYETHYLENE (PP)
  • Overall Diameter: 0.188 INCHES NOMINAL IN
  • Design Type: THREADED
  • Thread Size and Series/type Designator: 0.3750-28 UNS
  • Inside Diameter Length: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
Applications
  • Applications requiring Plastic, Polyethylene (pp) construction
General Description

The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-178-7855, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Niagara Plastics L.l.c.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-178-7855
Primary Part NumberDC-3
Item NameCap,protective,dust and Moisture
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerNiagara Plastics L.l.c.
StatusACTIVE
Thread Class2B
Round Cap Outside Surface ConditionRIBBED
MaterialPLASTIC, POLYETHYLENE (PP)
Overall Diameter0.188 INCHES NOMINAL IN
Design TypeTHREADED
Thread Size and Series/type Designator0.3750-28 UNS
Inside Diameter Length0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 6
5965-01-073-9081DC-3 INTERCHANGEABLE
Microphone,dynamic
Dcm Soundex Inc
4820-01-200-8036 INTERCHANGEABLE
Cartridge,valve
9150-01-424-8338DC3 INTERCHANGEABLE
Lubricant,solid Film
Parker Hannifin Corporation Div Aerospace Group Headquarters
4440-01-472-9991DC3 INTERCHANGEABLE
Cartridge,dehydrator
Des Case Corp
5915-01-507-7490DC3 INTERCHANGEABLE
Filter,band Pass
Astrodyne Corporation Div Dba Astrodynetdi -Low Power and Emi Filters Bu
2090-01-594-1149DC-3 INTERCHANGEABLE
Des-Case,spec
Sfr Inc
Cross-Reference Index
Part NumberManufacturer
DC31KB1 Caplugs Llc Dba Mokon Div Caplugs (USA)
DC-3 PRIMARY Niagara Plastics L.l.c. (USA)
Related Parts
5965-01-073-9081INTERCHANGEABLE
MICROPHONE,DYNAMIC
DC-3
4820-01-200-8036INTERCHANGEABLE
CARTRIDGE,VALVE
9150-01-424-8338INTERCHANGEABLE
LUBRICANT,SOLID FILM
DC3
4440-01-472-9991INTERCHANGEABLE
CARTRIDGE,DEHYDRATOR
DC3
5915-01-507-7490INTERCHANGEABLE
FILTER,BAND PASS
DC3
2090-01-594-1149INTERCHANGEABLE
DES-CASE,SPEC
DC-3

Frequently Asked Questions

What is NSN 5340-01-178-7855?

NSN 5340-01-178-7855 is a Cap,protective,dust and Moisture, manufactured by Niagara Plastics L.l.c., classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-178-7855?

NSN 5340-01-178-7855 has 2 cross-referenced part numbers: DC31KB1 (Caplugs Llc Dba Mokon Div Caplugs), DC-3 (Niagara Plastics L.l.c.).

What NSN replaces 5340-01-178-7855?

There are 6 known substitutes for 5340-01-178-7855: 5965-01-073-9081, 4820-01-200-8036, 9150-01-424-8338 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of DC-3?

Key specifications for DC-3: Thread Class: 2B; Round Cap Outside Surface Condition: RIBBED; Material: PLASTIC, POLYETHYLENE (PP); Overall Diameter: 0.188 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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