NSN 5220-01-671-4842 · NIIN 016714842 · Part number NG 300 BLACKOUT
J. R. Bennett Associates, Inc. Dba Clymer Manufacturing Co. · FSC 5220 — Inspection Gages and Precision Layout Tools · FSG 52 — Measuring Tools · CAGE 29639
Government record, cited
NSN 5220-01-671-4842 — this item is cataloged by the U.S. Government under National Stock Number 5220-01-671-4842. Manufacturer of record part number: NG 300 BLACKOUT.
Also searched as5220-01-671-4842 ·
5220016714842 ·
NIIN 016714842 ·
01-671-4842 ·
FSC 5220 Inspection Gages and Precision Layout Tools · CAGE 29639 · NG 300 BLACKOUT
Manufacturer of record: J. R. Bennett Associates, Inc. Dba Clymer Manufacturing Co.
Identification
NSN: 5220-01-671-4842
NIIN: 016714842
FSC: 5220 — Inspection Gages and Precision Layout Tools
FSG: 52 — Measuring Tools
Primary part number: NG 300 BLACKOUT
Manufacturer: J. R. Bennett Associates, Inc. Dba Clymer Manufacturing Co.
General Description
The Gage,headspace, cataloged under National Stock Number 5220-01-671-4842, is classified within Federal Supply Class 5220 (Inspection Gages and Precision Layout Tools) of the Measuring Tools group. The manufacturer of record is J. R. Bennett Associates, Inc. Dba Clymer Manufacturing Co.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5220-01-671-4842
Primary Part Number
NG 300 BLACKOUT
Item Name
Gage,headspace
FSC / FSG
5220 / 52 — Inspection Gages and Precision Layout Tools
Manufacturer
J. R. Bennett Associates, Inc. Dba Clymer Manufacturing Co.
J. R. Bennett Associates, Inc. Dba Clymer Manufacturing Co. (USA)
No interchangeability data on file.
Other items in FSC 5220 — Inspection Gages and Precision Layout Tools
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5220-00-001-1255
LEVEL,PRECISION,MASTER
5220-00-001-2242
5220-00-001-2242 · Item name not on file
5220-00-001-2243
5220-00-001-2243 · Item name not on file
5220-00-001-2673
5220-00-001-2673 · Item name not on file
5220-00-001-2674
5220-00-001-2674 · Item name not on file
5220-00-001-2691
5220-00-001-2691 · Item name not on file
5220-00-001-2692
5220-00-001-2692 · Item name not on file
5220-00-001-2693
5220-00-001-2693 · Item name not on file
Frequently Asked Questions
What is NSN 5220-01-671-4842?
NSN 5220-01-671-4842 is a Gage,headspace, manufactured by J. R. Bennett Associates, Inc. Dba Clymer Manufacturing Co., classified under FSC 5220, Inspection Gages and Precision Layout Tools. Status: active.
What part numbers are listed for NSN 5220-01-671-4842?
NSN 5220-01-671-4842 has 1 manufacturer part number on file: NG 300 BLACKOUT (J. R. Bennett Associates, Inc. Dba Clymer Manufacturing Co.).
What are the specifications of NG 300 BLACKOUT?
Key specifications for NG 300 BLACKOUT: Special Features: USED ON RIFLE CHAMBERS FOR 300AAC BLACKOUT CARTRIDGE OR NATO 7.62X35MM,WEAPON SYSTEMS:AR15,M16,M4 CARBINE; Material: STEEL. 1 specification is documented in the U.S. Government catalog.
Is NSN 5220-01-671-4842 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 5220-01-671-4842?
NSN 5220-01-671-4842 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.