The Spring,helical,compression, cataloged under National Stock Number 5360-01-346-1218, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Isodyne Inc.. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-346-1218 |
| Primary Part Number | IS0-400 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Isodyne Inc. |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.730 INCHES NOMINAL IN |
| Style Designator | TAPERED |
| Spring Deflection Rate | 2.650 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.370 INCHES NOMINAL IN |
| Stock Diameter | 0.009 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN |
| Spring Solid Outside Diameter | 0.730 INCHES NOMINAL IN |
| Coil Quantity | 4-1/4 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| 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 |
|---|---|
| IS0-400 PRIMARY | Isodyne Inc. (USA) |
| 901-436-3 PRIMARY | Electro Adapter Inc (USA) |
| 12347630-3 | General Dynamics Land Systems Inc. Div Gdls Global Llc (USA) |
| HE300 PRIMARY | Hellermanntyton Limited Dba Staeng (GBR) |
| 12347630-3 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12347630-3 | Glenair, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5360013461218 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| HE300 | 5/9 Secondary reference 3m Co Admininistrative Electronic & Communications |
| HE300 | 5/9 Secondary reference Minnesota Mining and Mfg Co 3m Company |
| 687-394-3 | 5/9 Secondary reference Glenair, Inc. |
NSN 5360-01-346-1218 is a Spring,helical,compression, manufactured by Isodyne Inc., classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-346-1218 has 6 manufacturer part numbers on file: IS0-400 (Isodyne Inc.), 901-436-3 (Electro Adapter Inc), 12347630-3 (General Dynamics Land Systems Inc. Div Gdls Global Llc), HE300 (Hellermanntyton Limited Dba Staeng), 12347630-3 (U S Army Tank Automotive Command Amsta-Im-Mm) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 6625-01-573-1172. Verify interchangeability with system specifications before substitution.
Key specifications for IS0-400: Spring Free Outside Diameter: 0.730 INCHES NOMINAL IN; Style Designator: TAPERED; Spring Deflection Rate: 2.650 POUNDS PER INCH NOMINAL LBS; Inside Diameter: 0.370 INCHES NOMINAL IN. 8 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.