The Spring,helical,extension, cataloged under National Stock Number 5360-00-663-3340, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple. Government technical data includes 11 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-663-3340 |
| Primary Part Number | A460-778 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.125 INCHES NOMINAL IN |
| End Style | FULL LOOP BOTH ENDS |
| Design Type | OPEN |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 4.500 INCHES NOMINAL IN |
| Inside Diameter | 0.101 INCHES NOMINAL IN |
| Coil Quantity | 117 |
| Surface Treatment | SILVER OVERALL |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.565 INCHES NOMINAL BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A460-778 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| Reference | Meaning |
|---|---|
| A460-778 | 5/9 Secondary reference Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
| A460-778 | 5/2 Secondary reference U.S. Government activity |
| SMB78849 | 5/2 Secondary reference U.S. Government activity |
| A460-77P | 5/9 Secondary reference Scomill Inc |
NSN 5360-00-663-3340 is a Spring,helical,extension, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-663-3340 has 1 manufacturer part number on file: A460-778 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple).
Key specifications for A460-778: Spring Free Outside Diameter: 0.125 INCHES NOMINAL IN; End Style: FULL LOOP BOTH ENDS; Design Type: OPEN; Style Designator: CYLINDRICAL. 11 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.