PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-55485/4Mounting Pad,electrical-Electron

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 5999-01-198-4549 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-198-4549 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-198-4549. Primary manufacturer part number: A-A-55485/4.
Features
  • Mounting Pad,electrical-Electron — FSC 5999
  • Material: PLASTIC DIALLYL PHTHALATE
  • Color: NATURAL
  • Overall Diameter: 0.500 INCHES NOMINAL IN
  • Mounting Facility Type and Quantity: 9 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • 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.).
  • Specification/standard Data: 58536-A-A-55485/4 GOVERNMENT SPECIFICATION
  • Unthreaded Mounting Hole Diameter: 0.032 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Applications
  • Applications requiring Plastic Diallyl Phthalate construction
General Description

The Mounting Pad,electrical-Electron, cataloged under National Stock Number 5999-01-198-4549, 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 10 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: PG.

Technical Specifications
ParameterValue
NSN5999-01-198-4549
Primary Part NumberA-A-55485/4
Item NameMounting Pad,electrical-Electron
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusCANCELLED
MaterialPLASTIC DIALLYL PHTHALATE
ColorNATURAL
Overall Diameter0.500 INCHES NOMINAL IN
Mounting Facility Type and Quantity9 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
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.).
Specification/standard Data58536-A-A-55485/4 GOVERNMENT SPECIFICATION
Unthreaded Mounting Hole Diameter0.032 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Body StyleDISK
MaterialPLASTIC DIALLYL PHTHALATE
ColorNATURAL
Overall Diameter0.500 INCHES NOMINAL IN
Mounting Facility Type and Quantity9 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
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.).
Specification/standard Data58536-A-A-55485/4 GOVERNMENT SPECIFICATION
Unthreaded Mounting Hole Diameter0.032 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Body StyleDISK
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5999-00-597-0851
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssuePG
SMR CodeDZ
Weight0.0200 lbs
Cube0.0009 cu ft
Verified Substitutes 9
Mounting Pad,electrical-Electron
5999-00-928-200910695506 SUCCESSOR
Mounting Pad,electrical-Electron
Us Army Aviation and Missile Command
Mounting Pad,electrical-Electron
Mounting Pad,electrical-Electron
Mounting Pad,electrical-Electron
Mounting Pad,electrical-Electron
Mounting Pad,electrical-Electron
1660-00-243-0369590015-2 INTERCHANGEABLE
Parts Kit,aircraft Cooling Turbi
Honeywell International Inc. Div Aerospace - Torrance
8465-01-699-73937000127707 INTERCHANGEABLE
Belt,individual Equipment
3m Company
Cross-Reference Index
Part NumberManufacturer
A-A-55485/4 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
TR325 Grimes Aerospace Company (USA)
7717-21NRED Thermalloy Co Inc (USA)
7717-21N Thermalloy Co Inc (USA)
A-55485/04-007D Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
MIL-M-38527/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M38527/04-007D Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M38527/04-007N Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5999PL0216875 Jednolity Indeks Materialowy - Uniform Material Index (POL)
590-0152 Continental Electronics Corp (USA)
Related Parts
SUCCESSOR 5999-00-597-0851 Mounting Pad,electrical-Electron
5999-00-928-2009SUCCESSOR
MOUNTING PAD,ELECTRICAL-ELECTRON
10695506
5999-01-026-6023SUCCESSOR
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-062-7548SUCCESSOR
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-069-2593SUCCESSOR
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-094-5954SUCCESSOR
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-439-0580SUCCESSOR
MOUNTING PAD,ELECTRICAL-ELECTRON
1660-00-243-0369INTERCHANGEABLE
PARTS KIT,AIRCRAFT COOLING TURBI
590015-2
8465-01-699-7393INTERCHANGEABLE
BELT,INDIVIDUAL EQUIPMENT
7000127707

Frequently Asked Questions

What is NSN 5999-01-198-4549?

NSN 5999-01-198-4549 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 5999-01-198-4549?

NSN 5999-01-198-4549 has 10 cross-referenced part numbers: A-A-55485/4 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), TR325 (Grimes Aerospace Company), 7717-21NRED (Thermalloy Co Inc), 7717-21N (Thermalloy Co Inc), A-55485/04-007D (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 5 more.

What NSN replaces 5999-01-198-4549?

There are 9 known substitutes for 5999-01-198-4549: 5999-00-597-0851, 5999-00-928-2009, 5999-01-026-6023 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-55485/4?

Key specifications for A-A-55485/4: Material: PLASTIC DIALLYL PHTHALATE; Color: NATURAL; Overall Diameter: 0.500 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 9 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-01-198-4549 still in active supply?

NSN 5999-01-198-4549 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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