The Spring,helical,compression, cataloged under National Stock Number 5360-00-312-5121, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Thompson O Co Div of Schindler Elevator Corp. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-312-5121 |
| Primary Part Number | F27 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Thompson O Co Div of Schindler Elevator Corp |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.4688 INCHES NOMINAL IN |
| End Style | SPRING END,SQUARED BOTH ENDS |
| Style Designator | TAPERED |
| Spring Free Length | 1.125 INCHES NOMINAL IN |
| Inside Diameter | 0.1875 INCHES NOMINAL IN |
| Coil Quantity | 13 |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| F27 | Thompson O Co Div of Schindler Elevator Corp (USA) |
| Reference | Meaning |
|---|---|
| F27 | 3/9 Design control — primary reference Sedgwick Machine Works Inc |
| M90ITEM3 | 5/9 Secondary reference Sedgwick Machine Works Inc |
NSN 5360-00-312-5121 is a Spring,helical,compression, manufactured by Thompson O Co Div of Schindler Elevator Corp, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-312-5121 has 1 manufacturer part number on file: F27 (Thompson O Co Div of Schindler Elevator Corp).
4 possible matches (shared part number, not a government interchangeability claim): 7720-00-756-4758, 3120-00-781-1260, 5999-01-085-0349. Verify interchangeability with system specifications before substitution.
Key specifications for F27: Spring Free Outside Diameter: 0.4688 INCHES NOMINAL IN; End Style: SPRING END,SQUARED BOTH ENDS; Style Designator: TAPERED; Spring Free Length: 1.125 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.