PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M5501/2-R2Plug,protective,dust and Moistur

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5340-01-206-5370 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-206-5370 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-206-5370. Primary manufacturer part number: M5501/2-R2.
Features
  • Plug,protective,dust and Moistur — FSC 5340
  • Design Type: THREADED
  • Overall Diameter: 0.580 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
  • Thread Class: 2A A
  • Drive Type: SERRATED
  • Features Provided: SHOULDER
  • Surface Treatment: CHROMATE
  • Thread Size and Series/type Designator: 5/16-24 UNF
Applications
  • Applications requiring Plastic construction
General Description

The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-01-206-5370, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-206-5370
Primary Part NumberM5501/2-R2
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
StatusACTIVE
Design TypeTHREADED
Overall Diameter0.580 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
Thread Class2A A
Drive TypeSERRATED
Features ProvidedSHOULDER
Surface TreatmentCHROMATE
Thread Size and Series/type Designator5/16-24 UNF
MaterialPLASTIC
Material Document and ClassificationL-P-390, TYPE 1, CLASS L, GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 7
5340-00-804-1220NAS842-12A SUCCESSOR
Plug,protective,dust and Moistur
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-00-804-1241NAS842-8A SUCCESSOR
Plug,protective,dust and Moistur
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-00-804-1243NAS842-6A SUCCESSOR
Plug,protective,dust and Moistur
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-01-120-9526NAS842-24A SUCCESSOR
Plug,protective,dust and Moistur
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-01-138-2170NAS838-12 SUCCESSOR
Plug,protective,dust and Moistur
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-01-142-3085NAS838-8 SUCCESSOR
Plug,protective,dust and Moistur
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-01-146-9729 INTERCHANGEABLE
Plug,protective,dust and Moistur
Cross-Reference Index
Part NumberManufacturer
M5501/2-R2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-C-5501/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5340-00-804-1220SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
NAS842-12A
5340-00-804-1241SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
NAS842-8A
5340-00-804-1243SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
NAS842-6A
5340-01-120-9526SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
NAS842-24A
5340-01-138-2170SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
NAS838-12
5340-01-142-3085SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
NAS838-8
5340-01-146-9729INTERCHANGEABLE
PLUG,PROTECTIVE,DUST AND MOISTUR

Frequently Asked Questions

What is NSN 5340-01-206-5370?

NSN 5340-01-206-5370 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: active.

What are the part numbers for NSN 5340-01-206-5370?

NSN 5340-01-206-5370 has 2 cross-referenced part numbers: M5501/2-R2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-C-5501/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5340-01-206-5370?

There are 7 known substitutes for 5340-01-206-5370: 5340-00-804-1220, 5340-00-804-1241, 5340-00-804-1243 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M5501/2-R2?

Key specifications for M5501/2-R2: Design Type: THREADED; Overall Diameter: 0.580 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN; Thread Class: 2A A; Drive Type: SERRATED. 10 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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