PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50207Gage,headspace

American Apex Corporation · NSN 5220-01-549-4391 · FSC 5220 · No Item Name Available
Verified by PartsTable
NSN 5220-01-549-4391 — this item is cataloged by the U.S. Government under National Stock Number 5220-01-549-4391. Primary manufacturer part number: 50207.
Features
  • Gage,headspace — FSC 5220
  • 3 verified cross-references
  • Primary manufacturer: American Apex Corporation
Applications
  • Quality assurance and inspection
  • Precision measurement and calibration
  • Laboratory and test equipment
General Description

The Gage,headspace, cataloged under National Stock Number 5220-01-549-4391, is classified within Federal Supply Class 5220 (No Item Name Available) of the Measuring Tools group. The primary manufacturer of record is American Apex Corporation. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameGage,headspace
FSC / FSG5220 — No Item Name Available (FSG 52)
ManufacturersNimikkeistokeskus Ncb Finland (CAGE A486G); G3 Systems Limited (CAGE KC3S1); American Apex Corporation (CAGE 04CK0)
Technical Specifications
ParameterValue
NSN5220-01-549-4391
Primary Part Number50207
Item NameGage,headspace
FSC / FSG5220 / 52 — No Item Name Available
ManufacturerAmerican Apex Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3424-00-254-8849 INTERCHANGEABLE
Furnace,heat Treating,electric
5330-00-285-3330146-6 INTERCHANGEABLE
Seal,plain Encased
Mack Trucks Inc Parts Opn
5305-00-514-7484SC-B-69671 INTERCHANGEABLE
Screw,machine
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
1680-00-630-745550207 INTERCHANGEABLE
Parts Kit,actuator,
Meggitt North Hollywood Inc
3455-01-334-5928 INTERCHANGEABLE
File,rotary
Cross-Reference Index
Part NumberManufacturer
10203050 Nimikkeistokeskus Ncb Finland (FIN)
G28.404.000.5320 G3 Systems Limited (GBR)
50207 PRIMARY American Apex Corporation (USA)
Related Parts
3424-00-254-8849INTERCHANGEABLE
FURNACE,HEAT TREATING,ELECTRIC
5330-00-285-3330INTERCHANGEABLE
SEAL,PLAIN ENCASED
146-6
5305-00-514-7484INTERCHANGEABLE
SCREW,MACHINE
SC-B-69671
1680-00-630-7455INTERCHANGEABLE
PARTS KIT,ACTUATOR,
50207
3455-01-334-5928INTERCHANGEABLE
FILE,ROTARY

Frequently Asked Questions

What is NSN 5220-01-549-4391?

NSN 5220-01-549-4391 is a Gage,headspace, manufactured by American Apex Corporation, classified under FSC 5220 (No Item Name Available). Status: active.

What are the part numbers for NSN 5220-01-549-4391?

NSN 5220-01-549-4391 has 3 cross-referenced part numbers: 10203050 (Nimikkeistokeskus Ncb Finland), G28.404.000.5320 (G3 Systems Limited), 50207 (American Apex Corporation).

What NSN replaces 5220-01-549-4391?

There are 5 known substitutes for 5220-01-549-4391: 3424-00-254-8849, 5330-00-285-3330, 5305-00-514-7484 and 2 more. Verify interchangeability with system specifications before substitution.

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