The Arm,handle,breechblock, cataloged under National Stock Number 1020-01-026-3937, is classified within Federal Supply Class 1020 (Guns, Over 125mm Through 150mm) of the Weapons group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. 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.
| Parameter | Value |
|---|---|
| NSN | 1020-01-026-3937 |
| Primary Part Number | 2528097 |
| Item Name | Arm,handle,breechblock |
| FSC / FSG | 1020 / 10 — Guns, Over 125mm Through 150mm |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,INVESTMENT CASTING,MIL-S-22141,ANNEALED,0.312 IN. DIA PIVOT HOLE,0.250 IN. DIA HOLE ON CONNECTING ARM,1.062 IN. O/A W,DIA OF HOLES ARE63 MICROINCH FINISH,ALL OTHER SURFACES ARE 125 MICROINCH FINISHED IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2528097 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 1020-01-026-3937 is a Arm,handle,breechblock, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1020, Guns, Over 125mm Through 150mm. Status: active.
NSN 1020-01-026-3937 has 1 manufacturer part number on file: 2528097 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2528097: General Characteristics Item Description: STEEL,INVESTMENT CASTING,MIL-S-22141,ANNEALED,0.312 IN. DIA PIVOT HOLE,0.250 IN. DIA HOLE ON CONNECTING ARM,1.062 IN. O/A W,DIA OF HOLES ARE63 MICROINCH FINISH,ALL OTHER SURFACES ARE 125 MICROINCH FINISHED 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.
NSN 1020-01-026-3937 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.