PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C256Circuit Card Assembly

Custom Power, Ltd. · NSN 5998-01-394-1340 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-394-1340 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-394-1340. Primary manufacturer part number: C256.
Features
  • Circuit Card Assembly — FSC 5998
  • 1 verified cross-reference
  • Primary manufacturer: Custom Power, Ltd.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-01-394-1340, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Custom Power, Ltd.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-01-394-1340
Primary Part NumberC256
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerCustom Power, Ltd.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 5
4330-00-204-338330-400-201 INTERCHANGEABLE
Filter Element,fluid
Wm W Nugent & Co Inc
5210-00-221-18825210-00-221-1882 INTERCHANGEABLE
Tape,measuring
General Services Administration Federal Supply Service
5340-00-244-7327 INTERCHANGEABLE
Seal,strapping
9390-01-171-4741C256 INTERCHANGEABLE
Bellows,protection
Haldex Brake Products Corporation
4820-01-204-8465C256 INTERCHANGEABLE
Stem,fluid Valve
Hunt Valve Company, Inc.
Cross-Reference Index
Part NumberManufacturer
C256 PRIMARY Custom Power, Ltd. (USA)
Related Parts
4330-00-204-3383INTERCHANGEABLE
FILTER ELEMENT,FLUID
30-400-201
5210-00-221-1882INTERCHANGEABLE
TAPE,MEASURING
5210-00-221-1882
5340-00-244-7327INTERCHANGEABLE
SEAL,STRAPPING
9390-01-171-4741INTERCHANGEABLE
BELLOWS,PROTECTION
C256
4820-01-204-8465INTERCHANGEABLE
STEM,FLUID VALVE
C256

Frequently Asked Questions

What is NSN 5998-01-394-1340?

NSN 5998-01-394-1340 is a Circuit Card Assembly, manufactured by Custom Power, Ltd., classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-394-1340?

NSN 5998-01-394-1340 has 1 cross-referenced part number: C256 (Custom Power, Ltd.).

What NSN replaces 5998-01-394-1340?

There are 5 known substitutes for 5998-01-394-1340: 4330-00-204-3383, 5210-00-221-1882, 5340-00-244-7327 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C256?

Key specifications for C256: End Item Identification: POWER SUPPLY UNINTERRUPTIBLE 120-7.5K3NT; End Item Identification: POWER SUPPLY UNINTERRUPTIBLE 120-7.5K3NT. 2 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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