PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77C14218P001Boot,dust and Moisture Seal

Lockheed Martin Corporation Div Rms · NSN 5930-01-154-3828 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-154-3828 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-154-3828. Primary manufacturer part number: 77C14218P001.
Features
  • Boot,dust and Moisture Seal — FSC 5930
  • Base Inside Diameter: 0.375 INCHES NOMINAL IN
  • Thread Series: UNEF
  • Thread Length: 0.120 INCHES NOMINAL IN
  • Opening Inside Diameter: 0.250 INCHES NOMINAL IN
  • Nominal Thread Size: 0.375 INCHES IN
  • Width Across Flats: 0.500 INCHES NOMINAL IN
  • Style Designator: THRU-HOLE
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Copper Alloy and Rubber Synthetic Body construction
General Description

The Boot,dust and Moisture Seal, cataloged under National Stock Number 5930-01-154-3828, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 17 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-01-154-3828
Primary Part Number77C14218P001
Item NameBoot,dust and Moisture Seal
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Base Inside Diameter0.375 INCHES NOMINAL IN
Thread SeriesUNEF
Thread Length0.120 INCHES NOMINAL IN
Opening Inside Diameter0.250 INCHES NOMINAL IN
Nominal Thread Size0.375 INCHES IN
Width Across Flats0.500 INCHES NOMINAL IN
Style DesignatorTHRU-HOLE
MaterialCOPPER ALLOY AND RUBBER SYNTHETIC BODY
Surface TreatmentNICKEL BODY
Material Document and ClassificationQQ-N-290,CLASS 2 FED SPEC 1ST MATERIAL RESPONSE AND MIL-R-3065,SC 715 ABF FED SPEC 2ND MATERIAL RESPONSE BODY
Mounting Device Quantity1
Thread Quantity Per Inch32
Thread Class2B
Mounting MethodINTEGRAL THREADED NUT
Base Thread LocationINTERNAL
Sealing MethodMECHANICAL
Hazardous Locations/environmental ProtectionDUSTPROOF-NEMA TYPE 13 AND MOISTURE PROOF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5930-00-491-8714 INTERCHANGEABLE
Boot,dust and Moisture Seal
Cross-Reference Index
Part NumberManufacturer
M5423-09-08 Apm Hexseal Corp (USA)
77C14218P001 PRIMARY Lockheed Martin Corporation Div Rms (USA)
Related Parts
5930-00-491-8714INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL

Frequently Asked Questions

What is NSN 5930-01-154-3828?

NSN 5930-01-154-3828 is a Boot,dust and Moisture Seal, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-01-154-3828?

NSN 5930-01-154-3828 has 2 cross-referenced part numbers: M5423-09-08 (Apm Hexseal Corp), 77C14218P001 (Lockheed Martin Corporation Div Rms).

What NSN replaces 5930-01-154-3828?

There is 1 known substitute for 5930-01-154-3828: 5930-00-491-8714. Verify interchangeability with system specifications before substitution.

What are the specifications of 77C14218P001?

Key specifications for 77C14218P001: Base Inside Diameter: 0.375 INCHES NOMINAL IN; Thread Series: UNEF; Thread Length: 0.120 INCHES NOMINAL IN; Opening Inside Diameter: 0.250 INCHES NOMINAL IN. 19 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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