PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

99021-1Retainer-Ejector,electrical Card

Rockwell Collins, Inc. Dba Rc Displays Systems · NSN 5998-01-255-4249 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-255-4249 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-255-4249. Primary manufacturer part number: 99021-1.
Features
  • Retainer-Ejector,electrical Card — FSC 5998
  • Material: PLASTIC
  • Color: WHITE
  • Unthreaded Mounting Hole Diameter: 0.095 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Material Document and Classification: MIL-A-20693,TYPE 4A MIL SPEC SINGLE MATERIAL RESPONSE A
  • Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Material: PLASTIC
  • Color: WHITE
Applications
  • Applications requiring Plastic construction
General Description

The Retainer-Ejector,electrical Card, cataloged under National Stock Number 5998-01-255-4249, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Rockwell Collins, Inc. Dba Rc Displays Systems. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-01-255-4249
Primary Part Number99021-1
Item NameRetainer-Ejector,electrical Card
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerRockwell Collins, Inc. Dba Rc Displays Systems
StatusACTIVE
MaterialPLASTIC
ColorWHITE
Unthreaded Mounting Hole Diameter0.095 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Material Document and ClassificationMIL-A-20693,TYPE 4A MIL SPEC SINGLE MATERIAL RESPONSE A
Mounting Facility Type and Quantity1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
MaterialPLASTIC
ColorWHITE
Unthreaded Mounting Hole Diameter0.095 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Material Document and ClassificationMIL-A-20693,TYPE 4A MIL SPEC SINGLE MATERIAL RESPONSE A
Mounting Facility Type and Quantity1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeYN
Verified Substitutes 8
5998-00-252-9775 INTERCHANGEABLE
Retainer-Ejector,electrical Card
5310-00-996-9372S205 INTERCHANGEABLE
Nut,plain,hexagon
Cummins Northeastern Inc
8040-01-034-0401 INTERCHANGEABLE
Adhesive
5310-01-165-2184S-205 INTERCHANGEABLE
Nut
Cummins Inc.
4130-01-192-1644S-205 INTERCHANGEABLE
Filter Assembly,air
Bijur Lubricating Corp
3460-01-353-8103S-205 INTERCHANGEABLE
Sleeve,expansion Mandrel
Sunnen Products Co
3220-01-386-4883S-205 INTERCHANGEABLE
Surfacer,woodworking
Newman Machine Co Inc Dba Newman-Whitney
5975-01-475-9656TC-812 INTERCHANGEABLE
Mounting Base,tie Down,electrica
Abb Installation Products Inc
Cross-Reference Index
Part NumberManufacturer
S-205 Scanbe Mfg Co Div of Zero Corp (USA)
11780319-1 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
99021-1 PRIMARY Rockwell Collins, Inc. Dba Rc Displays Systems (USA)
Related Parts
5998-00-252-9775INTERCHANGEABLE
RETAINER-EJECTOR,ELECTRICAL CARD
5310-00-996-9372INTERCHANGEABLE
NUT,PLAIN,HEXAGON
S205
8040-01-034-0401INTERCHANGEABLE
ADHESIVE
5310-01-165-2184INTERCHANGEABLE
NUT
S-205
4130-01-192-1644INTERCHANGEABLE
FILTER ASSEMBLY,AIR
S-205
3460-01-353-8103INTERCHANGEABLE
SLEEVE,EXPANSION MANDREL
S-205
3220-01-386-4883INTERCHANGEABLE
SURFACER,WOODWORKING
S-205
5975-01-475-9656INTERCHANGEABLE
MOUNTING BASE,TIE DOWN,ELECTRICA
TC-812

Frequently Asked Questions

What is NSN 5998-01-255-4249?

NSN 5998-01-255-4249 is a Retainer-Ejector,electrical Card, manufactured by Rockwell Collins, Inc. Dba Rc Displays Systems, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-255-4249?

NSN 5998-01-255-4249 has 3 cross-referenced part numbers: S-205 (Scanbe Mfg Co Div of Zero Corp), 11780319-1 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 99021-1 (Rockwell Collins, Inc. Dba Rc Displays Systems).

What NSN replaces 5998-01-255-4249?

There are 8 known substitutes for 5998-01-255-4249: 5998-00-252-9775, 5310-00-996-9372, 8040-01-034-0401 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 99021-1?

Key specifications for 99021-1: Overall Length: 1.1250 INCHES NOMINAL IN; End Item Identification: TEST SET,FIRE CONTROL SUBSYSTEM; NSN 4931-01-079-8403; Material: PLASTIC; Overall Height: 0.3120 INCHES NOMINAL IN. 16 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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