PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

603-921-001-603Adapter,headset

Roanwell, Llc · NSN 5965-00-823-8623 · FSC 5965 · No Item Name Available
Verified by PartsTable
NSN 5965-00-823-8623 — this item is cataloged by the U.S. Government under National Stock Number 5965-00-823-8623. Primary manufacturer part number: 603-921-001-603.
Features
  • Adapter,headset — FSC 5965
  • Usage Design: ADAPTS HEADSET TO TESTER FOR CHECKING TONE
  • 8 verified cross-references
  • Primary manufacturer: Roanwell, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Adapter,headset, cataloged under National Stock Number 5965-00-823-8623, is classified within Federal Supply Class 5965 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Roanwell, Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5965-00-823-8623
Primary Part Number603-921-001-603
Item NameAdapter,headset
FSC / FSG5965 / 59 — No Item Name Available
ManufacturerRoanwell, Llc
StatusACTIVE
Usage DesignADAPTS HEADSET TO TESTER FOR CHECKING TONE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6140-00-190-9828 INTERCHANGEABLE
Battery,storage
5110-00-239-6885 INTERCHANGEABLE
File,hand
3120-00-448-348111-118 INTERCHANGEABLE
Bearing,sleeve
Dresser Industries Inc Leroi Div
2825-00-652-2364101A156AC1 INTERCHANGEABLE
Runner,thrust
General Electric Company
9540-01-072-1722 INTERCHANGEABLE
Angle,structural
5330-01-078-49600444164B05 INTERCHANGEABLE
Seal,special
Prestolite Electric Inc
4310-01-187-912911118 INTERCHANGEABLE
Ring,piston
Pacific Piston Ring Co Inc
3020-01-328-3112 INTERCHANGEABLE
Pulley,groove
6220-01-334-656411118 INTERCHANGEABLE
Panel,indicating,light Transmitt
Airco Industries, Inc. Dba Photo Etch Div Photo Etch
4330-01-355-6038VC-00168F0-165H INTERCHANGEABLE
Filter Element,fluid
Pall Aeropower Corporation
Cross-Reference Index
Part NumberManufacturer
11118 Roanwell, Llc (USA)
603-921-001-603 PRIMARY Roanwell, Llc (USA)
1816855 Northrop Grumman Systems Corporation (USA)
11118A Roanwell, Llc (USA)
1270171-2 Dcm Soundex Inc (USA)
MX-4115/GTM-3 Joint Electronics Type Designation System (USA)
603-921-001 Roanwell, Llc (USA)
1270171-2 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
Related Parts
6140-00-190-9828INTERCHANGEABLE
BATTERY,STORAGE
5110-00-239-6885INTERCHANGEABLE
FILE,HAND
3120-00-448-3481INTERCHANGEABLE
BEARING,SLEEVE
11-118
2825-00-652-2364INTERCHANGEABLE
RUNNER,THRUST
101A156AC1
9540-01-072-1722INTERCHANGEABLE
ANGLE,STRUCTURAL
5330-01-078-4960INTERCHANGEABLE
SEAL,SPECIAL
0444164B05
4310-01-187-9129INTERCHANGEABLE
RING,PISTON
11118
3020-01-328-3112INTERCHANGEABLE
PULLEY,GROOVE
6220-01-334-6564INTERCHANGEABLE
PANEL,INDICATING,LIGHT TRANSMITT
11118
4330-01-355-6038INTERCHANGEABLE
FILTER ELEMENT,FLUID
VC-00168F0-165H
5120-01-397-3181INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5985-01-468-8811INTERCHANGEABLE
RADOME
11118

Frequently Asked Questions

What is NSN 5965-00-823-8623?

NSN 5965-00-823-8623 is a Adapter,headset, manufactured by Roanwell, Llc, classified under FSC 5965 (No Item Name Available). Status: active.

What are the part numbers for NSN 5965-00-823-8623?

NSN 5965-00-823-8623 has 8 cross-referenced part numbers: 11118 (Roanwell, Llc), 603-921-001-603 (Roanwell, Llc), 1816855 (Northrop Grumman Systems Corporation), 11118A (Roanwell, Llc), 1270171-2 (Dcm Soundex Inc) and 3 more.

What NSN replaces 5965-00-823-8623?

There are 12 known substitutes for 5965-00-823-8623: 6140-00-190-9828, 5110-00-239-6885, 3120-00-448-3481 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 603-921-001-603?

Key specifications for 603-921-001-603: Usage Design: ADAPTS HEADSET TO TESTER FOR CHECKING TONE; Overall Length: 46.000 INCHES NOMINAL IN. 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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