The Gage,headspace, cataloged under National Stock Number 5220-01-436-5055, is classified within Federal Supply Class 5220 (Inspection Gages and Precision Layout Tools) of the Measuring Tools group. The manufacturer of record is Brownells, Incorporated Dba Brownells Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5220-01-436-5055 |
| Primary Part Number | 184-110-120 |
| Item Name | Gage,headspace |
| FSC / FSG | 5220 / 52 — Inspection Gages and Precision Layout Tools |
| Manufacturer | Brownells, Incorporated Dba Brownells Inc |
| Status | ACTIVE |
| General Characteristics Item Description | GUNSMITHING TOOL WHICH TESTS 12 GAUGE CHAMBER TO MAKE SURE GUN IS SAFE TO FIRE; STEEL MATL; MAX LENGTH 2.000 IN; G0 IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 184-110-120 | Helston Gunsmiths (GBR) |
| 184-110-120 PRIMARY | Brownells, Incorporated Dba Brownells Inc (USA) |
| BEN-C-2009-GO | Gmk Limited (GBR) |
NSN 5220-01-436-5055 is a Gage,headspace, manufactured by Brownells, Incorporated Dba Brownells Inc, classified under FSC 5220, Inspection Gages and Precision Layout Tools. Status: active.
NSN 5220-01-436-5055 has 3 manufacturer part numbers on file: 184-110-120 (Helston Gunsmiths), 184-110-120 (Brownells, Incorporated Dba Brownells Inc), BEN-C-2009-GO (Gmk Limited).
Key specifications for 184-110-120: General Characteristics Item Description: GUNSMITHING TOOL WHICH TESTS 12 GAUGE CHAMBER TO MAKE SURE GUN IS SAFE TO FIRE; STEEL MATL; MAX LENGTH 2.000 IN; G0 IN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.