PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-55485/3Mounting Pad,electrical-Electron

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 5999-01-054-6449 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-054-6449 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-054-6449. Primary manufacturer part number: A-A-55485/3.
Features
  • Mounting Pad,electrical-Electron — FSC 5999
  • Unthreaded Mounting Hole Diameter: 0.033 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Color: NATURAL
  • Material: PLASTIC DIALLYL PHTHALATE
  • Test Data Document: 58536-A-A-55485 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Specification/standard Data: 58536-A-A-55485/3 GOVERNMENT SPECIFICATION
  • Body Style: DISK
Applications
  • Applications requiring Plastic Diallyl Phthalate construction
General Description

The Mounting Pad,electrical-Electron, cataloged under National Stock Number 5999-01-054-6449, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: PG.

Technical Specifications
ParameterValue
NSN5999-01-054-6449
Primary Part NumberA-A-55485/3
Item NameMounting Pad,electrical-Electron
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusCANCELLED
Unthreaded Mounting Hole Diameter0.033 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
ColorNATURAL
MaterialPLASTIC DIALLYL PHTHALATE
Test Data Document58536-A-A-55485 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Specification/standard Data58536-A-A-55485/3 GOVERNMENT SPECIFICATION
Body StyleDISK
Overall Diameter0.255 INCHES NOMINAL IN
Unthreaded Mounting Hole Diameter0.033 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
ColorNATURAL
MaterialPLASTIC DIALLYL PHTHALATE
Test Data Document58536-A-A-55485 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Specification/standard Data58536-A-A-55485/3 GOVERNMENT SPECIFICATION
Body StyleDISK
Overall Diameter0.255 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5999-01-073-7147
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssuePG
SMR CodeDZ
Weight0.0063 lbs
Cube0.0000 cu ft
Verified Substitutes 4
Mounting Pad,electrical-Electron
Mounting Pad,electrical-Electron
Mounting Pad,electrical-Electron
5999-01-251-1489 INTERCHANGEABLE
Mounting Pad,electrical-Electron
Cross-Reference Index
Part NumberManufacturer
A-A-55485/3 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
M38527/03-001D Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
10139442 Nimikkeistokeskus Ncb Finland (FIN)
A-55485/03-001N Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
M38527/3-01D Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-M-38527/3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M38527/03-01N Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A-55485/03-001D Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
M38527-3-01 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 5999-01-073-7147 Mounting Pad,electrical-Electron
5999-01-431-5815SUCCESSOR
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-451-0600SUCCESSOR
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-251-1489INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON

Frequently Asked Questions

What is NSN 5999-01-054-6449?

NSN 5999-01-054-6449 is a Mounting Pad,electrical-Electron, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-01-054-6449?

NSN 5999-01-054-6449 has 9 cross-referenced part numbers: A-A-55485/3 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), M38527/03-001D (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 10139442 (Nimikkeistokeskus Ncb Finland), A-55485/03-001N (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), M38527/3-01D (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 4 more.

What NSN replaces 5999-01-054-6449?

There are 4 known substitutes for 5999-01-054-6449: 5999-01-073-7147, 5999-01-431-5815, 5999-01-451-0600 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-55485/3?

Key specifications for A-A-55485/3: Unthreaded Mounting Hole Diameter: 0.033 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Color: NATURAL; Material: PLASTIC DIALLYL PHTHALATE; Test Data Document: 58536-A-A-55485 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-01-054-6449 still in active supply?

NSN 5999-01-054-6449 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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