The Screw Assembly, cataloged under National Stock Number 2825-01-103-1360, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Naval Sea Systems Command Logistics Support Engineering Activity. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2825-01-103-1360 |
| Primary Part Number | 21S011031360 |
| Item Name | Screw Assembly |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Manufacturer | Naval Sea Systems Command Logistics Support Engineering Activity |
| Status | ACTIVE |
| General Characteristics Item Description | NSN IS A CRITICAL APPLICATION ITEM (CAI) |
| Special Test Features | THE SCREW MATERIAL SHALL BE AS SPECIFIED IN ASTM A108, GRADE 121, COLD DRAWN; THE CHECK NUT MATERIAL SHALL BE AS SPECIFIED IN MIL-S-1222, TYPE I, GRADE 2, STYLE B; THE FLAT HEAD RIVET MATERIAL SHALL BE AS SPECIFIED IN DOD-F-24669/1, GRADE DESIGNATION 1010; MATERIAL FURNISHED SHALL CONTAIN NO MERCURY OR MERCURY COMPOUND AND SHALL BE FREE OF MERCURY CONTAMINATION |
| Supplementary Features | TOLERANCES SHALL BE AS FOLLOWS: FRACTIONAL TOLERANCE SHALL BE + OR - 1/64"; ANGULAR TOLERANCE SHALL BE + OR - 1 DEGREE; THE THREAD SERIES DESIGNATION FOR THE SCREW SHALL BE 1/2 - 13UNC-2A; THE THREAD SERIES DESIGNATION FOR THE CHECK NUT SHALL BE 1/2 - 13UNC - 2B A |
| Criticality Code Justification | TEXT |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 21S011031360 PRIMARY | Naval Sea Systems Command Logistics Support Engineering Activity (USA) |
| 287C720-1 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| 287C720 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| 287C720-001 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 7378E65P24 | 5/9 Secondary reference General Electric Company |
| 3178082 | D/9 Drawing number reference only U.S. Government activity |
| 287C720 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| 287C720P1 | 5/9 Secondary reference General Electric Company |
| 287C720-1 | C/1 Advisory reference — outside the item-of-supply concept General Electric Company |
| 287C720-001 | 5/9 Secondary reference General Electric Company |
NSN 2825-01-103-1360 is a Screw Assembly, manufactured by Naval Sea Systems Command Logistics Support Engineering Activity, classified under FSC 2825, Steam Turbines and Components. Status: active.
NSN 2825-01-103-1360 has 2 manufacturer part numbers on file: 21S011031360 (Naval Sea Systems Command Logistics Support Engineering Activity), 287C720-1 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
Key specifications for 21S011031360: General Characteristics Item Description: NSN IS A CRITICAL APPLICATION ITEM (CAI); Special Test Features: THE SCREW MATERIAL SHALL BE AS SPECIFIED IN ASTM A108, GRADE 121, COLD DRAWN; THE CHECK NUT MATERIAL SHALL BE AS SPECIFIED IN MIL-S-1222, TYPE I, GRADE 2, STYLE B; THE FLAT HEAD RIVET MATERIAL SHALL BE AS SPECIFIED IN DOD-F-24669/1, GRADE DESIGNATION 1010; MATERIAL FURNISHED SHALL CONTAIN NO MERCURY OR MERCURY COMPOUND AND SHALL BE FREE OF MERCURY CONTAMINATION; Supplementary Features: TOLERANCES SHALL BE AS FOLLOWS: FRACTIONAL TOLERANCE SHALL BE + OR - 1/64"; ANGULAR TOLERANCE SHALL BE + OR - 1 DEGREE; THE THREAD SERIES DESIGNATION FOR THE SCREW SHALL BE 1/2 - 13UNC-2A; THE THREAD SERIES DESIGNATION FOR THE CHECK NUT SHALL BE 1/2 - 13UNC - 2B A; Criticality Code Justification: TEXT. 5 specifications are 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.