The Gage,firing Pin Protrusion, cataloged under National Stock Number 5220-01-528-2233, is classified within Federal Supply Class 5220 (Inspection Gages and Precision Layout Tools) of the Measuring Tools group. The manufacturer of record is Northrop Grumman Systems Corp Div Weapon System. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Gage,firing Pin Protrusion |
| FSC / FSG | 5220 — Inspection Gages and Precision Layout Tools (FSG 52) |
| Manufacturers | Optronic Instruments and Products (CAGE B0012); Northrop Grumman Systems Corp Div Weapon System (CAGE 8KP69) |
| Parameter | Value |
|---|---|
| NSN | 5220-01-528-2233 |
| Primary Part Number | 465-0734 |
| Item Name | Gage,firing Pin Protrusion |
| FSC / FSG | 5220 / 52 — Inspection Gages and Precision Layout Tools |
| Manufacturer | Northrop Grumman Systems Corp Div Weapon System |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 201.015.125 | Optronic Instruments and Products (BEL) |
| 465-0734 PRIMARY | Northrop Grumman Systems Corp Div Weapon System (USA) |
| Reference | Meaning |
|---|---|
| 465-0734 | 3/9 Design control — primary reference Alliant Techsystems Operations Llc |
NSN 5220-01-528-2233 is a Gage,firing Pin Protrusion, manufactured by Northrop Grumman Systems Corp Div Weapon System, classified under FSC 5220, Inspection Gages and Precision Layout Tools. Status: active.
NSN 5220-01-528-2233 has 2 manufacturer part numbers on file: 201.015.125 (Optronic Instruments and Products), 465-0734 (Northrop Grumman Systems Corp Div Weapon System).
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.