PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50-344Delay Line

Polara Engineering, Inc. · NSN 5999-01-111-9931 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-111-9931 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-111-9931. Primary manufacturer part number: 50-344.
Features
  • Delay Line — FSC 5999
  • 2 verified cross-references
  • Primary manufacturer: Polara Engineering, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Delay Line, cataloged under National Stock Number 5999-01-111-9931, 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 Polara Engineering, Inc.. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 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)
ManufacturersPolara Engineering, Inc. (CAGE 32155)
Technical Specifications
ParameterValue
NSN5999-01-111-9931
Primary Part Number50-344
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerPolara Engineering, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
1680-00-048-345650344 INTERCHANGEABLE
Element Assy
Pti Technologies Inc.
4730-00-999-90571290433 INTERCHANGEABLE
Clamp,hose
Naval Ship Systems Command
5331-01-011-792150344 INTERCHANGEABLE
O-Ring
Paccar Winch Inc Dba Paccar Winch Division
1680-01-113-60505034-4 INTERCHANGEABLE
Clamp,control Cable Locking
Triumph Controls, Llc Dba Triumph Controls, Llc
9905-01-321-114550-344 INTERCHANGEABLE
Plate,instruction
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
3120-01-327-256412288291 INTERCHANGEABLE
Bushing,sleeve
Mahle Componentes De Motor De Mexico, S.de R.l. De C.v.
6515-01-423-355450344 INTERCHANGEABLE
Catheter,arterial Irrigation
Abbott Laboratories Inc. Div Hospital Products Division
6105-01-564-6103503440F INTERCHANGEABLE
Rotor,motor
Thermo Electron Corporation Dba Iec Centrifuge Div Laboratory Equipment Divsion
Cross-Reference Index
Part NumberManufacturer
50-344 PRIMARY Polara Engineering, Inc. (USA)
201D251 PRIMARY Polara Engineering, Inc. (USA)
Related Parts
1680-00-048-3456INTERCHANGEABLE
ELEMENT ASSY
50344
4730-00-999-9057INTERCHANGEABLE
CLAMP,HOSE
1290433
5331-01-011-7921INTERCHANGEABLE
O-RING
50344
1680-01-113-6050INTERCHANGEABLE
CLAMP,CONTROL CABLE LOCKING
5034-4
9905-01-321-1145INTERCHANGEABLE
PLATE,INSTRUCTION
50-344
3120-01-327-2564INTERCHANGEABLE
BUSHING,SLEEVE
12288291
6515-01-423-3554INTERCHANGEABLE
CATHETER,ARTERIAL IRRIGATION
50344
6105-01-564-6103INTERCHANGEABLE
ROTOR,MOTOR
503440F

Frequently Asked Questions

What is NSN 5999-01-111-9931?

NSN 5999-01-111-9931 is a Delay Line, manufactured by Polara Engineering, Inc., classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-111-9931?

NSN 5999-01-111-9931 has 2 cross-referenced part numbers: 50-344 (Polara Engineering, Inc.), 201D251 (Polara Engineering, Inc.).

What NSN replaces 5999-01-111-9931?

There are 8 known substitutes for 5999-01-111-9931: 1680-00-048-3456, 4730-00-999-9057, 5331-01-011-7921 and 5 more. Verify interchangeability with system specifications before substitution.

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