The Spring,helical,extension, cataloged under National Stock Number 5360-00-278-9166, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Smiths Detection Inc. Dba Smiths Detection Inc Casc. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-278-9166 |
| Primary Part Number | G354388 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Smiths Detection Inc. Dba Smiths Detection Inc Casc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.156 INCHES NOMINAL IN |
| Load Rating | 4.60 POUNDS NOMINAL LBS |
| End Style | MACHINE LOOP SECOND END |
| End Style | MACHINE HOOK FIRST END |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.500 INCHES NOMINAL FIRST END IN |
| Opening Width | 0.046 INCHES NOMINAL BOTH ENDS IN |
| Material Document and Classification | QQ-W-423,COND B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.780 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.156 INCHES NOMINAL SECOND END IN |
| Coil to Hook Inside Length | 0.485 INCHES NOMINAL FIRST END IN |
| Inside Diameter | 0.126 INCHES NOMINAL IN |
| End Hook Length | 0.312 INCHES NOMINAL FIRST END IN |
| Spring Length Under Load | 0.828 INCHES NOMINAL IN |
| Coil Quantity | 6 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 302 OVERALL |
| Hook Radius | 0.063 INCHES NOMINAL SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| G354388 | Smiths Detection Inc. Dba Smiths Detection Inc Casc (USA) |
| G354388 | Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc (USA) |
| Reference | Meaning |
|---|---|
| G354388 | 5/9 Secondary reference American Telephone and Telegraph Co |
| G354388 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5360-00-278-9166 is a Spring,helical,extension, manufactured by Smiths Detection Inc. Dba Smiths Detection Inc Casc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-278-9166 has 2 manufacturer part numbers on file: G354388 (Smiths Detection Inc. Dba Smiths Detection Inc Casc), G354388 (Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc).
Key specifications for G354388: Spring Free Outside Diameter: 0.156 INCHES NOMINAL IN; Load Rating: 4.60 POUNDS NOMINAL LBS; End Style: MACHINE LOOP SECOND END; End Style: MACHINE HOOK FIRST END. 19 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.