PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

29011Checking Ball

Jergens Inc Div Tooling Components Division · NSN 4920-01-518-8521 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-518-8521 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-518-8521. Primary manufacturer part number: 29011.
Features
  • Checking Ball — FSC 4920
  • 1 verified cross-reference
  • Primary manufacturer: Jergens Inc Div Tooling Components Division
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Checking Ball, cataloged under National Stock Number 4920-01-518-8521, 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 Jergens Inc Div Tooling Components Division. This item has 1 commercial cross-reference 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.

Technical Specifications
ParameterValue
NSN4920-01-518-8521
Primary Part Number29011
Item NameChecking Ball
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerJergens Inc Div Tooling Components Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5910-00-106-0925441-1029-020 INTERCHANGEABLE
Capacitor,fixed,electrolytic
The Boeing Company Div Legacy Boeing Hb1
5935-00-371-536511663109 INTERCHANGEABLE
Connector,receptacle,electrical
U S Army Tank Automotive Command Amsta-Im-Mm
5915-00-501-075529010 INTERCHANGEABLE
Filter,radio Frequency Interfere
Hydro-Aire Aerospace Corp
5930-00-978-7954 INTERCHANGEABLE
Switch Assembly
5325-01-398-947729011 INTERCHANGEABLE
Insert,screw Thread
Northwestern Tools, Inc.
5120-01-430-8242 INTERCHANGEABLE
Wrench Set,combination Box and O
5305-01-509-307229011 INTERCHANGEABLE
Screw,machine
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
1005-01-631-033829011 INTERCHANGEABLE
Parts Kit,gun
U.s. Ordnance
Cross-Reference Index
Part NumberManufacturer
29011 PRIMARY Jergens Inc Div Tooling Components Division (USA)
Related Parts
5910-00-106-0925INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
441-1029-020
5935-00-371-5365INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
11663109
5915-00-501-0755INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
29010
5930-00-978-7954INTERCHANGEABLE
SWITCH ASSEMBLY
5325-01-398-9477INTERCHANGEABLE
INSERT,SCREW THREAD
29011
5120-01-430-8242INTERCHANGEABLE
WRENCH SET,COMBINATION BOX AND O
5305-01-509-3072INTERCHANGEABLE
SCREW,MACHINE
29011
1005-01-631-0338INTERCHANGEABLE
PARTS KIT,GUN
29011

Frequently Asked Questions

What is NSN 4920-01-518-8521?

NSN 4920-01-518-8521 is a Checking Ball, manufactured by Jergens Inc Div Tooling Components Division, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-518-8521?

NSN 4920-01-518-8521 has 1 cross-referenced part number: 29011 (Jergens Inc Div Tooling Components Division).

What NSN replaces 4920-01-518-8521?

There are 8 known substitutes for 4920-01-518-8521: 5910-00-106-0925, 5935-00-371-5365, 5915-00-501-0755 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 29011?

Key specifications for 29011: Special Features: BALL DIA 0.250IN; THREADED SHANK LENGTH 0.36IN; THREADED SHANK DIA 0.1247IN; WELD DESIGNED TO SHEAR WITH EXTREME FORCE TO LESSEN CHANCE OF SYSTEM DAMAGE IN. 1 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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