PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M5501/1-R6Plug,protective,dust and Moistur

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5340-00-286-4146 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-286-4146 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-286-4146. Primary manufacturer part number: M5501/1-R6.
Features
  • Plug,protective,dust and Moistur — FSC 5340
  • Design Type: THREADED
  • Features Provided: SHOULDER
  • Material: PLASTIC
  • Thread Class: 3A A
  • Overall Diameter: 1.063 INCHES NOMINAL IN
  • Nondefinitive Spec/std Data: 3 TYPE AND 6 SIZE
  • Thread Size and Series/type Designator: 9/16-18 UNF
Applications
  • Applications requiring Plastic construction
General Description

The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-00-286-4146, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-286-4146
Primary Part NumberM5501/1-R6
Item NamePlug,protective,dust and Moistur
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Design TypeTHREADED
Features ProvidedSHOULDER
MaterialPLASTIC
Thread Class3A A
Overall Diameter1.063 INCHES NOMINAL IN
Nondefinitive Spec/std Data3 TYPE AND 6 SIZE
Thread Size and Series/type Designator9/16-18 UNF
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5340-00-051-0029
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
No Item Name Available
Cap,protective,dust and Moisture
5340-00-171-2436MS90376-18Y SUCCESSOR
Cap,protective,dust and Moisture
Sae International Dba Sae International
Plug,protective,dust and Moistur
Cap-Plug,protective,dust and Moi
Plug,protective,dust and Moistur
5340-00-290-72496735707-23 SUCCESSOR
Cap-Plug,protective,dust and Moi
Allison Transmission Inc Dba Allison Transmission, Inc
5340-00-292-3292NAS836-6A SUCCESSOR
Plug,protective,dust and Moistur
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Plug,protective,dust and Moistur
Cap,protective,dust and Moisture
Cross-Reference Index
Part NumberManufacturer
M5501/1-R6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILC5501 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-C-5501/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 5340-00-051-0029 Cap,protective,dust and Moisture
5340-00-804-1227SUCCESSOR
NO ITEM NAME AVAILABLE
5340-00-171-2436SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
MS90376-18Y
5340-00-205-6961SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
5340-00-264-1208SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
5340-00-286-4147SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
5340-00-290-7249SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
6735707-23
5340-00-292-3292SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
NAS836-6A
5340-00-297-1659SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
5340-00-298-9419SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-00-449-4491SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-00-481-8934SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE

Frequently Asked Questions

What is NSN 5340-00-286-4146?

NSN 5340-00-286-4146 is a Plug,protective,dust and Moistur, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-286-4146?

NSN 5340-00-286-4146 has 3 cross-referenced part numbers: M5501/1-R6 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILC5501 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-C-5501/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5340-00-286-4146?

There are 12 known substitutes for 5340-00-286-4146: 5340-00-804-1227, 5340-00-051-0029, 5340-00-171-2436 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M5501/1-R6?

Key specifications for M5501/1-R6: Design Type: THREADED; Features Provided: SHOULDER; Material: PLASTIC; Thread Class: 3A A. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-286-4146 still in active supply?

NSN 5340-00-286-4146 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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