PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25321Pen Subassy

Raytheon Company Dba Raytheon · NSN 5845-00-338-8639 · FSC 5845 · No Item Name Available
Verified by PartsTable
NSN 5845-00-338-8639 — this item is cataloged by the U.S. Government under National Stock Number 5845-00-338-8639. Primary manufacturer part number: 25321.
Features
  • Pen Subassy — FSC 5845
  • 1 verified cross-reference
  • Primary manufacturer: Raytheon Company Dba Raytheon
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Pen Subassy, cataloged under National Stock Number 5845-00-338-8639, is classified within Federal Supply Class 5845 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Raytheon Company Dba Raytheon. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePen Subassy
FSC / FSG5845 — No Item Name Available (FSG 58)
ManufacturersRaytheon Company Dba Raytheon (CAGE 96214)
Technical Specifications
ParameterValue
NSN5845-00-338-8639
Primary Part Number25321
Item NamePen Subassy
FSC / FSG5845 / 58 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
1650-00-166-574425321 INTERCHANGEABLE
Retainer,drive Shaf
Arvinmeritor Inc
5120-00-288-875425321 INTERCHANGEABLE
Handle,shovel
Wta Tool Llc
5975-00-471-337225321 INTERCHANGEABLE
Cable Nipple,electrical
Champion Aerospace Llc
5950-00-648-19980153-03042 INTERCHANGEABLE
Reactor
Entron Industries Limited Partnership Dba Entron Industries Property Div
5330-00-809-1052BA3026-2 INTERCHANGEABLE
Seal,nonmetallic Strip
Parker Hannifin Corporation Div Cylinder Division
5935-01-030-5093 INTERCHANGEABLE
Connector,receptacle,electrical
5360-01-112-398125321 INTERCHANGEABLE
Spring,helical,compression
Circor Aerospace, Inc. Dba Circor Aerospace Inc
6515-01-600-293981-3405 INTERCHANGEABLE
Handle,screwdriver,bone Screw
Codman & Shurtleff Inc
6635-01-604-18552532-1 INTERCHANGEABLE
Reference Standard,physical Prop
Earle Environmental Corp
Cross-Reference Index
Part NumberManufacturer
25321 PRIMARY Raytheon Company Dba Raytheon (USA)
Related Parts
1650-00-166-5744INTERCHANGEABLE
RETAINER,DRIVE SHAF
25321
5120-00-288-8754INTERCHANGEABLE
HANDLE,SHOVEL
25321
5975-00-471-3372INTERCHANGEABLE
CABLE NIPPLE,ELECTRICAL
25321
5950-00-648-1998INTERCHANGEABLE
REACTOR
0153-03042
5330-00-809-1052INTERCHANGEABLE
SEAL,NONMETALLIC STRIP
BA3026-2
5935-01-030-5093INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5360-01-112-3981INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
25321
6515-01-600-2939INTERCHANGEABLE
HANDLE,SCREWDRIVER,BONE SCREW
81-3405
6635-01-604-1855INTERCHANGEABLE
REFERENCE STANDARD,PHYSICAL PROP
2532-1

Frequently Asked Questions

What is NSN 5845-00-338-8639?

NSN 5845-00-338-8639 is a Pen Subassy, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5845 (No Item Name Available). Status: active.

What are the part numbers for NSN 5845-00-338-8639?

NSN 5845-00-338-8639 has 1 cross-referenced part number: 25321 (Raytheon Company Dba Raytheon).

What NSN replaces 5845-00-338-8639?

There are 9 known substitutes for 5845-00-338-8639: 1650-00-166-5744, 5120-00-288-8754, 5975-00-471-3372 and 6 more. Verify interchangeability with system specifications before substitution.

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