PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NEO1-PAElectronic Components Assembly

Hei Inc · NSN 5998-00-170-6721 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-00-170-6721 — this item is cataloged by the U.S. Government under National Stock Number 5998-00-170-6721. Primary manufacturer part number: NEO1-PA.
Features
  • Electronic Components Assembly — FSC 5998
  • 2 verified cross-references
  • Primary manufacturer: Hei Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Electronic Components Assembly, cataloged under National Stock Number 5998-00-170-6721, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Hei Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-00-170-6721
Primary Part NumberNEO1-PA
Item NameElectronic Components Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerHei Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeY
Verified Substitutes 12
5120-00-204-053021003 INTERCHANGEABLE
Face,hammer,inserted
Garland Manufacturing Co Dba Garland Manufacturing Co Div Uhmw Polyethylene Division
5325-00-276-42487431654-118 INTERCHANGEABLE
Grommet,nonmetallic
Westinghouse Electric Corp
2805-00-391-321021003 INTERCHANGEABLE
Ring,piston
Briggs and Stratton Corp
5960-00-521-022121003 INTERCHANGEABLE
Retainer,electron,t
Leica Inc Surveying and Photogrammetry Systems Div
5325-00-597-51762100-3 INTERCHANGEABLE
Insert,screw Thread
Nafco Usa Llc
5950-00-787-7044 INTERCHANGEABLE
Coil,radio Frequency
5325-00-803-7304 INTERCHANGEABLE
Ring,retaining
5940-00-983-6114 INTERCHANGEABLE
Terminal Board
6685-00-994-102765C INTERCHANGEABLE
Thermometer,self-Indicating
Weksler Glass Thermometer Corp
4130-01-017-3319456295 INTERCHANGEABLE
Filter Element,air Conditioning
Donaldson Company, Inc.
Cross-Reference Index
Part NumberManufacturer
NEO1-PA Hei Inc (USA)
21003 Addmaster Corporation (USA)
Related Parts
5120-00-204-0530INTERCHANGEABLE
FACE,HAMMER,INSERTED
21003
5325-00-276-4248INTERCHANGEABLE
GROMMET,NONMETALLIC
7431654-118
2805-00-391-3210INTERCHANGEABLE
RING,PISTON
21003
5960-00-521-0221INTERCHANGEABLE
RETAINER,ELECTRON,T
21003
5325-00-597-5176INTERCHANGEABLE
INSERT,SCREW THREAD
2100-3
5950-00-787-7044INTERCHANGEABLE
COIL,RADIO FREQUENCY
5325-00-803-7304INTERCHANGEABLE
RING,RETAINING
5940-00-983-6114INTERCHANGEABLE
TERMINAL BOARD
6685-00-994-1027INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
65C
4130-01-017-3319INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
456295
5961-01-249-4469INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
21003
9330-01-255-5405INTERCHANGEABLE
TUBING,PLASTIC,SPIRAL WRAP
706751

Frequently Asked Questions

What is NSN 5998-00-170-6721?

NSN 5998-00-170-6721 is a Electronic Components Assembly, manufactured by Hei Inc, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-00-170-6721?

NSN 5998-00-170-6721 has 2 cross-referenced part numbers: NEO1-PA (Hei Inc), 21003 (Addmaster Corporation).

What NSN replaces 5998-00-170-6721?

There are 12 known substitutes for 5998-00-170-6721: 5120-00-204-0530, 5325-00-276-4248, 2805-00-391-3210 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NEO1-PA?

Key specifications for NEO1-PA: Part Name Assigned by Controlling Agency: FSC APPLICATION DATA:TELETYPE AND FACSIMILE EQUIPMENT; Overall Height: 0.093 INCHES NOMINAL IN; Overall Length: 1.562 INCHES NOMINAL IN; Overall Width: 0.500 INCHES NOMINAL IN. 12 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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