PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1213221Circuit Card Assembly

Lockheed Martin Corporation Div Rms · NSN 5998-01-373-5250 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-373-5250 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-373-5250. Primary manufacturer part number: 1213221.
Features
  • Circuit Card Assembly — FSC 5998
  • Criticality Code Justification: FEAT
  • Criticality Code Justification: FEAT
  • 2 verified cross-references
  • Primary manufacturer: Lockheed Martin Corporation Div Rms
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-01-373-5250, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-01-373-5250
Primary Part Number1213221
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Criticality Code JustificationFEAT
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality Code00
Unit of IssueEA
SMR CodeJH
Weight3.2500 lbs
Cube0.7639 cu ft
Verified Substitutes 1
5330-01-321-974136851123 INTERCHANGEABLE
Gasket
Perkins Engines Inc
Cross-Reference Index
Part NumberManufacturer
6539645-1 Naval Sea Systems Command (USA)
1213221 PRIMARY Lockheed Martin Corporation Div Rms (USA)
Related Parts
5330-01-321-9741INTERCHANGEABLE
GASKET
36851123

Frequently Asked Questions

What is NSN 5998-01-373-5250?

NSN 5998-01-373-5250 is a Circuit Card Assembly, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-373-5250?

NSN 5998-01-373-5250 has 2 cross-referenced part numbers: 6539645-1 (Naval Sea Systems Command), 1213221 (Lockheed Martin Corporation Div Rms).

What NSN replaces 5998-01-373-5250?

There is 1 known substitute for 5998-01-373-5250: 5330-01-321-9741. Verify interchangeability with system specifications before substitution.

What are the specifications of 1213221?

Key specifications for 1213221: Part Name Assigned by Controlling Agency: RESISTOR-AMP; Criticality Code Justification: FEAT; End Item Identification: MK92MOD1 PAL; Special Features: ITEMS ARE BEING CODED AS CRITICAL TO INSURE SOURCE INSPECTION WILL BE PERFORMED AT THE POINT OF MANUFACTURE, PRIOR TO MATERIAL RECEIPT BY THE US NAVY OR OTHER DOD COMPONENTS. THESE ITEMS ARE PIECE PARTS OR END ITEMS IN SUPPORT OF VITAL MILITARY HARDWARE NECESSARY TO SUSTAIN THE SUCCESSFUL MISSION OF THE SHIPS, SUBMARINES, AND SHORE STATIONS OF THE US NAVY. CRITICAL FEATURES INCLUDING, BUT NOT LIMITED TO, DIMENSIONS, TOLERANCES/CLEARANCES, ELECTRONIC CHARACTERISTICS, AND METALLURGICAL PROPERTIES WILL BESPECIFIED FOR GOVERNMENT Q AR (QUALITY ASSURANCE REPRESENTATIVES) TO INSURE THE HIGHEST POSSIBLE DEGREE OF QUALITY AND RELIABILITY OF THESE PARTS BEING DELIVERED UNDER NAVICP CONTRACTS. 8 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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