PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TYPEJ1Boresight Kit,gun

Department of the Air Force · NSN 4920-00-398-4123 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-00-398-4123 — this item is cataloged by the U.S. Government under National Stock Number 4920-00-398-4123. Primary manufacturer part number: TYPEJ1.
Features
  • Boresight Kit,gun — FSC 4920
  • 5 verified cross-references
  • Primary manufacturer: Department of the Air Force
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Boresight Kit,gun, cataloged under National Stock Number 4920-00-398-4123, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Department of the Air Force. This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-00-398-4123
Primary Part NumberTYPEJ1
Item NameBoresight Kit,gun
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerDepartment of the Air Force
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-155-6718150559 INTERCHANGEABLE
Bearing,ball,annular
Chrysler Realty Company Llc Dba Daimler Chrysler
5340-00-205-4824200402 INTERCHANGEABLE
Disk,solid,plain
Chrysler Realty Company Llc Dba Daimler Chrysler
4020-00-238-564710193048-002 INTERCHANGEABLE
Cord,retaining,cable Reel
Us Army Aviation and Missile Command
9540-00-487-5822 INTERCHANGEABLE
Angle,structural
5950-00-512-014924734 INTERCHANGEABLE
Transformer,saturab
Lockheed Martin Corporation Div Rms
6920-00-657-282424734 INTERCHANGEABLE
Torque Spring Assy
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
4820-01-061-512424734 INTERCHANGEABLE
Stem,fluid Valve
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
5985-01-104-92923032236P1 INTERCHANGEABLE
Dummy Load,electrical
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
Cross-Reference Index
Part NumberManufacturer
TYPEJ1 Department of the Air Force (USA)
24734 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILK6765 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
B3153 Polan Industries (USA)
DES161M0DB Bell and Howell Phillipsburg Co Corporate Offices (USA)
Related Parts
3110-00-155-6718INTERCHANGEABLE
BEARING,BALL,ANNULAR
150559
5340-00-205-4824INTERCHANGEABLE
DISK,SOLID,PLAIN
200402
4020-00-238-5647INTERCHANGEABLE
CORD,RETAINING,CABLE REEL
10193048-002
9540-00-487-5822INTERCHANGEABLE
ANGLE,STRUCTURAL
5950-00-512-0149INTERCHANGEABLE
TRANSFORMER,SATURAB
24734
6920-00-657-2824INTERCHANGEABLE
TORQUE SPRING ASSY
24734
4820-01-061-5124INTERCHANGEABLE
STEM,FLUID VALVE
24734
5985-01-104-9292INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
3032236P1

Frequently Asked Questions

What is NSN 4920-00-398-4123?

NSN 4920-00-398-4123 is a Boresight Kit,gun, manufactured by Department of the Air Force, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-00-398-4123?

NSN 4920-00-398-4123 has 5 cross-referenced part numbers: TYPEJ1 (Department of the Air Force), 24734 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILK6765 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), B3153 (Polan Industries), DES161M0DB (Bell and Howell Phillipsburg Co Corporate Offices).

What NSN replaces 4920-00-398-4123?

There are 8 known substitutes for 4920-00-398-4123: 3110-00-155-6718, 5340-00-205-4824, 4020-00-238-5647 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of TYPEJ1?

Key specifications for TYPEJ1: End Item Identification: F5 A/B ACFT; Special Features: COMPANY ITEM NAME--BORESIGHT KIT, GUN. 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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