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 5999-01-199-2856 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-199-2856 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-199-2856. Primary manufacturer part number: A-A-55485/4.
Features
  • Mounting Pad,electrical-Electron — FSC 5999
  • Body Style: DISK
  • Unthreaded Mounting Hole Diameter: 0.022 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Mounting Facility Type and Quantity: 11 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.).
  • Overall Diameter: 0.500 INCHES NOMINAL IN
  • Material: PLASTIC DIALLYL PHTHALATE
  • Specification/standard Data: 58536-A-A-55485/4 GOVERNMENT SPECIFICATION
Applications
  • Applications requiring Plastic Diallyl Phthalate construction
General Description

The Mounting Pad,electrical-Electron, cataloged under National Stock Number 5999-01-199-2856, 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 6 commercial cross-references from 4 manufacturers, 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
NSN5999-01-199-2856
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
StatusACTIVE
Body StyleDISK
Unthreaded Mounting Hole Diameter0.022 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity11 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.).
Overall Diameter0.500 INCHES NOMINAL IN
MaterialPLASTIC DIALLYL PHTHALATE
Specification/standard Data58536-A-A-55485/4 GOVERNMENT SPECIFICATION
ColorNATURAL
Unthreaded Mounting Hole Diameter0.022 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity11 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.).
Overall Diameter0.500 INCHES NOMINAL IN
Body StyleDISK
MaterialPLASTIC DIALLYL PHTHALATE
Specification/standard Data58536-A-A-55485/4 GOVERNMENT SPECIFICATION
ColorNATURAL
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5999-00-597-0851
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJZ
Weight0.0090 lbs
Cube0.0029 cu ft
Verified Substitutes 7
5999-00-443-9736C10175-0008 SUCCESSOR
Mounting Pad,electrical-Electron
Rosemount Aerospace Inc Dba Rosemount Aerospace Inc
Mounting Pad,electrical-Electron
Mounting Pad,electrical-Electron
Mounting Pad,electrical-Electron
Mounting Pad,electrical-Electron
Mounting Pad,electrical-Electron
Mounting Pad,electrical-Electron
Cross-Reference Index
Part NumberManufacturer
A-A-55485/4 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
C10175-0008 Ross Milton Co the (USA)
10129542 Nimikkeistokeskus Ncb Finland (FIN)
MIL-M-38527/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M38527/04-008D Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A-55485/04-008D Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
SUCCESSOR 5999-00-597-0851 Mounting Pad,electrical-Electron
5999-00-443-9736SUCCESSOR
MOUNTING PAD,ELECTRICAL-ELECTRON
C10175-0008
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

Frequently Asked Questions

What is NSN 5999-01-199-2856?

NSN 5999-01-199-2856 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: active.

What are the part numbers for NSN 5999-01-199-2856?

NSN 5999-01-199-2856 has 6 cross-referenced part numbers: A-A-55485/4 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), C10175-0008 (Ross Milton Co the), 10129542 (Nimikkeistokeskus Ncb Finland), MIL-M-38527/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M38527/04-008D (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5999-01-199-2856?

There are 7 known substitutes for 5999-01-199-2856: 5999-00-443-9736, 5999-00-597-0851, 5999-01-026-6023 and 4 more. Verify interchangeability with system specifications before substitution.

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

Key specifications for A-A-55485/4: Body Style: DISK; Unthreaded Mounting Hole Diameter: 0.022 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Mounting Facility Type and Quantity: 11 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.).. 18 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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