PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

41141Cap,protective,dust and Moisture

Multi-Flex Seals Inc · NSN 5340-00-437-4590 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-437-4590 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-437-4590. Primary manufacturer part number: 41141.
Features
  • Cap,protective,dust and Moisture — FSC 5340
  • Connector Nominal Thread Size for Which Designed: 0.437 INCHES IN
  • Design Type: THREADED
  • Thread Size and Series/type Designator: 0.437-32 UN
  • Width Across Flats: 0.625 INCHES NOMINAL IN
  • Inside Diameter Length: 0.656 INCHES NOMINAL IN
  • Thread Class: 2B
  • Material: COPPER ALLOY
Applications
  • Applications requiring Copper Alloy construction
General Description

The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-00-437-4590, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Multi-Flex Seals Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-437-4590
Primary Part Number41141
Item NameCap,protective,dust and Moisture
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMulti-Flex Seals Inc
StatusACTIVE
Connector Nominal Thread Size for Which Designed0.437 INCHES IN
Design TypeTHREADED
Thread Size and Series/type Designator0.437-32 UN
Width Across Flats0.625 INCHES NOMINAL IN
Inside Diameter Length0.656 INCHES NOMINAL IN
Thread Class2B
MaterialCOPPER ALLOY
Surface TreatmentNICKEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 8
5355-00-005-10274114-1 INTERCHANGEABLE
Knob
Wakmann Watch Company Inc
3030-00-294-98401070289 INTERCHANGEABLE
Belt,v
Chrysler Realty Company Llc Dba Daimler Chrysler
2930-00-358-596031306 INTERCHANGEABLE
Cap,filler Opening
Gates Corporation
5930-00-686-583641141 INTERCHANGEABLE
Switch,analyzer
Carling Technologies, Inc Dba Carlingswitch
5940-01-130-6104 INTERCHANGEABLE
Terminal,lug
5962-01-373-831253415-1 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
5365-01-476-467541141 INTERCHANGEABLE
Plug,machine Thread
Moog Inc. Dba Ampac-Isp Corp
5120-01-528-417900941141000 INTERCHANGEABLE
Screwdriver,square Tip
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
Cross-Reference Index
Part NumberManufacturer
007328-1 Meggitt Defense Systems, Inc. Dba Meggitt Western Design (USA)
41141 PRIMARY Multi-Flex Seals Inc (USA)
53415-1 Raytheon Company Dba Raytheon (USA)
007328-1 Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA)
Related Parts
5355-00-005-1027INTERCHANGEABLE
KNOB
4114-1
3030-00-294-9840INTERCHANGEABLE
BELT,V
1070289
2930-00-358-5960INTERCHANGEABLE
CAP,FILLER OPENING
31306
5930-00-686-5836INTERCHANGEABLE
SWITCH,ANALYZER
41141
5940-01-130-6104INTERCHANGEABLE
TERMINAL,LUG
5962-01-373-8312INTERCHANGEABLE
MICROCIRCUIT,MEMORY
53415-1
5365-01-476-4675INTERCHANGEABLE
PLUG,MACHINE THREAD
41141
5120-01-528-4179INTERCHANGEABLE
SCREWDRIVER,SQUARE TIP
00941141000

Frequently Asked Questions

What is NSN 5340-00-437-4590?

NSN 5340-00-437-4590 is a Cap,protective,dust and Moisture, manufactured by Multi-Flex Seals Inc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-437-4590?

NSN 5340-00-437-4590 has 4 cross-referenced part numbers: 007328-1 (Meggitt Defense Systems, Inc. Dba Meggitt Western Design), 41141 (Multi-Flex Seals Inc), 53415-1 (Raytheon Company Dba Raytheon), 007328-1 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc).

What NSN replaces 5340-00-437-4590?

There are 8 known substitutes for 5340-00-437-4590: 5355-00-005-1027, 3030-00-294-9840, 2930-00-358-5960 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 41141?

Key specifications for 41141: Connector Nominal Thread Size for Which Designed: 0.437 INCHES IN; Design Type: THREADED; Thread Size and Series/type Designator: 0.437-32 UN; Width Across Flats: 0.625 INCHES NOMINAL IN. 9 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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