PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A21042Delay Line

Bae Systems Information and Electronic Systems Integration Inc. · NSN 5999-00-647-0102 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-647-0102 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-647-0102. Primary manufacturer part number: A21042.
Features
  • Delay Line — FSC 5999
  • 2 verified cross-references
  • Primary manufacturer: Bae Systems Information and Electronic Systems Integration Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Delay Line, cataloged under National Stock Number 5999-00-647-0102, 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 Bae Systems Information and Electronic Systems Integration Inc.. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDelay Line
FSC / FSG5999 — No Item Name Available (FSG 59)
ManufacturersJoint Electronics Type Designation System (CAGE 80058); Bae Systems Information and Electronic Systems Integration Inc. (CAGE 80249)
Technical Specifications
ParameterValue
NSN5999-00-647-0102
Primary Part NumberA21042
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5342-01-094-052369A21042 INTERCHANGEABLE
Post
Gentex Corporation
5977-01-140-6668 INTERCHANGEABLE
Brush Set,electrical Contact
Cross-Reference Index
Part NumberManufacturer
MX1207ATPS1D Joint Electronics Type Designation System (USA)
A21042 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. (USA)
Related Parts
5342-01-094-0523INTERCHANGEABLE
POST
69A21042
5977-01-140-6668INTERCHANGEABLE
BRUSH SET,ELECTRICAL CONTACT

Frequently Asked Questions

What is NSN 5999-00-647-0102?

NSN 5999-00-647-0102 is a Delay Line, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-647-0102?

NSN 5999-00-647-0102 has 2 cross-referenced part numbers: MX1207ATPS1D (Joint Electronics Type Designation System), A21042 (Bae Systems Information and Electronic Systems Integration Inc.).

What NSN replaces 5999-00-647-0102?

There are 2 known substitutes for 5999-00-647-0102: 5342-01-094-0523, 5977-01-140-6668. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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