PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CD844389Delay Line Set

Rfs Technologies, Inc. · NSN 5999-01-270-6281 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-270-6281 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-270-6281. Primary manufacturer part number: CD844389.
Features
  • Delay Line Set — FSC 5999
  • 3 verified cross-references
  • Primary manufacturer: Rfs Technologies, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Delay Line Set, cataloged under National Stock Number 5999-01-270-6281, 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 Rfs Technologies, Inc.. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-270-6281
Primary Part NumberCD844389
Item NameDelay Line Set
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerRfs Technologies, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality Code00
Unit of IssueEA
SMR CodeJH
Verified Substitutes 9
5360-00-062-853140534 INTERCHANGEABLE
Spring,helical,compression
Jenny Products, Inc
3455-00-189-914311580 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Niagara Cutter Inc
4820-00-908-680640533C INTERCHANGEABLE
Fitting,test Valve
Griswold Industries Dba Cla-Val Co
5330-01-043-5833728590 INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
7490-01-183-724740534 INTERCHANGEABLE
Shredding Machine,paper
Dahle North America Inc
2920-01-363-278540534 INTERCHANGEABLE
Lead,ignition,engine
Unison Industries Llc
4730-01-446-3253209P-4-2 INTERCHANGEABLE
Bushing,pipe
Parker-Hannifin Corp Div Instrumentation Products Division
5133-01-460-173340534 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
4110-01-464-033940-534 INTERCHANGEABLE
Harness,battery Ch
Thermo King Corporation Dba Phoenix Global Distirbution.
Cross-Reference Index
Part NumberManufacturer
72B229003-1001 The Boeing Company Div Defense (USA)
40534 Precision Tube Company Inc (USA)
CD844389 PRIMARY Rfs Technologies, Inc. (USA)
Related Parts
5360-00-062-8531INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
40534
3455-00-189-9143INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
11580
4820-00-908-6806INTERCHANGEABLE
FITTING,TEST VALVE
40533C
5330-01-043-5833INTERCHANGEABLE
GASKET
728590
7490-01-183-7247INTERCHANGEABLE
SHREDDING MACHINE,PAPER
40534
2920-01-363-2785INTERCHANGEABLE
LEAD,IGNITION,ENGINE
40534
4730-01-446-3253INTERCHANGEABLE
BUSHING,PIPE
209P-4-2
5133-01-460-1733INTERCHANGEABLE
DRILL,TWIST
40534
4110-01-464-0339INTERCHANGEABLE
HARNESS,BATTERY CH
40-534

Frequently Asked Questions

What is NSN 5999-01-270-6281?

NSN 5999-01-270-6281 is a Delay Line Set, manufactured by Rfs Technologies, Inc., classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-270-6281?

NSN 5999-01-270-6281 has 3 cross-referenced part numbers: 72B229003-1001 (The Boeing Company Div Defense), 40534 (Precision Tube Company Inc), CD844389 (Rfs Technologies, Inc.).

What NSN replaces 5999-01-270-6281?

There are 9 known substitutes for 5999-01-270-6281: 5360-00-062-8531, 3455-00-189-9143, 4820-00-908-6806 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CD844389?

Key specifications for CD844389: Special Features: SQ ALUM. ALLOY BOX 16.75 IN. ON EA SIDE AND 3.15 IN. HT,CONTAINS 2 DELAY LINES EA TERMINATING IN 2 SMA TYPE JACKS ON THE FRONT ALONG W/D-SHAPED HANDLES;ONE DELAY LINE IS 0.375 IN. DIA,240 FT LONG COAXIAL CABLE W/302 NSEC DELAY AT 4.38 GHZ AND 30 DB MAX INSERTION LOSS;OTHER LINE IS 0.250 IN. DIA,78 FT LONG COAXIAL CABLE W/99 NSEC DELAY AT 4.38 GHZ AND 20 DB MAX INSERTION LOSS GHz; Special Features: SQ ALUM. ALLOY BOX 16.75 IN. ON EA SIDE AND 3.15 IN. HT,CONTAINS 2 DELAY LINES EA TERMINATING IN 2 SMA TYPE JACKS ON THE FRONT ALONG W/D-SHAPED HANDLES;ONE DELAY LINE IS 0.375 IN. DIA,240 FT LONG COAXIAL CABLE W/302 NSEC DELAY AT 4.38 GHZ AND 30 DB MAX INSERTION LOSS;OTHER LINE IS 0.250 IN. DIA,78 FT LONG COAXIAL CABLE W/99 NSEC DELAY AT 4.38 GHZ AND 20 DB MAX INSERTION LOSS GHz. 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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