The Spring Set,range, cataloged under National Stock Number 1220-00-577-0690, is classified within Federal Supply Class 1220 (Fire Control Computing Sights and Devices) of the Fire Control Equipment group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1220-00-577-0690 |
| Item Name | Spring Set,range |
| FSC / FSG | 1220 / 12 — Fire Control Computing Sights and Devices |
| Status | ACTIVE |
| General Characteristics Item Description | 4 UNIT QTY,PLASTIC BAG |
| Reference Number Differentiating Characteristics | MATCHED INTO SETS OF FOUR SPRINGS OF EQUAL STIFFNESS WITHIN 0.003 IN. DEFLECTION TOLERANCE USING SPECIAL EQUIPMENT IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 325459-3 | 3/1 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 325459-3REVC | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 195882 | 5/1 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 1220-00-577-0690 is a Spring Set,range, classified under FSC 1220, Fire Control Computing Sights and Devices. Status: active.
Key specifications for 1220-00-577-0690: General Characteristics Item Description: 4 UNIT QTY,PLASTIC BAG; Reference Number Differentiating Characteristics: MATCHED INTO SETS OF FOUR SPRINGS OF EQUAL STIFFNESS WITHIN 0.003 IN. DEFLECTION TOLERANCE USING SPECIAL EQUIPMENT IN. 2 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.