PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-B-545066Boot,dust and Moisture Seal

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5340-00-937-9020 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-937-9020 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-937-9020. Primary manufacturer part number: SM-B-545066.
Features
  • Boot,dust and Moisture Seal — FSC 5340
  • Mounting Device Quantity: 2
  • Base Thread Location: INTERNAL
  • Thread Quantity Per Inch: 32
  • Nominal Thread Size: 0.438 INCHES IN
  • Thread Series: UNS
  • Thread Class: 2B
  • Style Designator: CLOSED END
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Silicone Body construction
General Description

The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-00-937-9020, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 12 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-937-9020
Primary Part NumberSM-B-545066
Item NameBoot,dust and Moisture Seal
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Mounting Device Quantity2
Base Thread LocationINTERNAL
Thread Quantity Per Inch32
Nominal Thread Size0.438 INCHES IN
Thread SeriesUNS
Thread Class2B
Style DesignatorCLOSED END
Dome Height0.375 INCHES NOMINAL IN
Mounting MethodFRICTION AND INTEGRAL THREADED NUT
Sealing MethodCOMPRESSION
Width Across Flats0.625 INCHES NOMINAL IN
MaterialRUBBER SILICONE BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
5935-00-045-624540141 INTERCHANGEABLE
Connector,receptica
Avo Multi-Amp Corp
3130-00-217-702540141 INTERCHANGEABLE
Housing,bearing Unit
L3harris Technologies, Inc Div Space & Airborne Systems
5330-00-368-7057J111529 INTERCHANGEABLE
Seal,plain Encased
Jered Llc
5310-00-637-847040141 INTERCHANGEABLE
Nut,plain,round
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5330-00-696-0280304452 INTERCHANGEABLE
Seal,plain Encased
Garwood/feller Inc Garwood Winch Div
5961-00-712-3948 INTERCHANGEABLE
Semiconductor Device,diode
5330-00-850-7952BA3718 INTERCHANGEABLE
Gasket
Stillman Seal Corporation Div Stillman Seal Corperation
5305-00-901-314240141 INTERCHANGEABLE
Screw,wood
Hillman Group, Inc., the
7025-01-003-13644014-1 INTERCHANGEABLE
Display Terminal,computer
Tektronix, Inc.
7510-01-316-2163GEMPC0300 INTERCHANGEABLE
Clip,paper
Mba Office Supply, Inc.
Cross-Reference Index
Part NumberManufacturer
40141 Multi-Flex Seals Inc (USA)
SM-B-545066 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
5935-00-045-6245INTERCHANGEABLE
CONNECTOR,RECEPTICA
40141
3130-00-217-7025INTERCHANGEABLE
HOUSING,BEARING UNIT
40141
5330-00-368-7057INTERCHANGEABLE
SEAL,PLAIN ENCASED
J111529
5310-00-637-8470INTERCHANGEABLE
NUT,PLAIN,ROUND
40141
5330-00-696-0280INTERCHANGEABLE
SEAL,PLAIN ENCASED
304452
5961-00-712-3948INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5330-00-850-7952INTERCHANGEABLE
GASKET
BA3718
5305-00-901-3142INTERCHANGEABLE
SCREW,WOOD
40141
7025-01-003-1364INTERCHANGEABLE
DISPLAY TERMINAL,COMPUTER
4014-1
7510-01-316-2163INTERCHANGEABLE
CLIP,PAPER
GEMPC0300
3455-01-359-9528INTERCHANGEABLE
CUTTER,MILLING,END
40141
5340-01-507-2815INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
40141

Frequently Asked Questions

What is NSN 5340-00-937-9020?

NSN 5340-00-937-9020 is a Boot,dust and Moisture Seal, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-937-9020?

NSN 5340-00-937-9020 has 2 cross-referenced part numbers: 40141 (Multi-Flex Seals Inc), SM-B-545066 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 5340-00-937-9020?

There are 12 known substitutes for 5340-00-937-9020: 5935-00-045-6245, 3130-00-217-7025, 5330-00-368-7057 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-B-545066?

Key specifications for SM-B-545066: Mounting Device Quantity: 2; Overall Height: 0.718 INCHES NOMINAL IN; Base Thread Location: INTERNAL; Thread Quantity Per Inch: 32. 13 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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