The Bar,side, cataloged under National Stock Number 1020-01-225-5871, is classified within Federal Supply Class 1020 (Guns, Over 125mm Through 150mm) of the Weapons group. The manufacturer of record is Bae Systems Land & Armaments L.p.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1020-01-225-5871 |
| Primary Part Number | 3139944 |
| Item Name | Bar,side |
| FSC / FSG | 1020 / 10 — Guns, Over 125mm Through 150mm |
| Manufacturer | Bae Systems Land & Armaments L.p. |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,1046; 2.431 IN. O/A LG; 2.188 IN. O/A H; 0.125 IN. O/A THK; 2 HOLES 0.310 IN. DIA; 1 HOLE 0.375 IN. DIA; BOLT HOLE C TO C ALONG LG 1.493 IN. AND ALONG H 1.344 IN.; HEAT TREATED TO ROCKWELL C 38-42 HARDNESS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3139944 PRIMARY | Bae Systems Land & Armaments L.p. (USA) |
| Reference | Meaning |
|---|---|
| 3139944 | D/9 Drawing number reference only Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 1020-01-225-5871 is a Bar,side, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 1020, Guns, Over 125mm Through 150mm. Status: active.
NSN 1020-01-225-5871 has 1 manufacturer part number on file: 3139944 (Bae Systems Land & Armaments L.p.).
Key specifications for 3139944: General Characteristics Item Description: STEEL,1046; 2.431 IN. O/A LG; 2.188 IN. O/A H; 0.125 IN. O/A THK; 2 HOLES 0.310 IN. DIA; 1 HOLE 0.375 IN. DIA; BOLT HOLE C TO C ALONG LG 1.493 IN. AND ALONG H 1.344 IN.; HEAT TREATED TO ROCKWELL C 38-42 HARDNESS 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 1020-01-225-5871 has DEMIL Code B. 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.