The Spring,helical,extension, cataloged under National Stock Number 5360-01-197-2278, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Deere & Co. Government technical data includes 17 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-197-2278 |
| Primary Part Number | R31877 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Deere & Co |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.500 INCHES NOMINAL IN |
| Load Rating | 21.00 POUNDS NOMINAL LBS |
| End Style | MACHINE LOOP BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.1875 INCHES NOMINAL BOTH ENDS IN |
| Material Document and Classification | ASTM A228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 2.0625 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.3750 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.375 INCHES NOMINAL IN |
| Stock Diameter | 0.0625 INCHES NOMINAL IN |
| Spring Length Under Load | 3.437 INCHES NOMINAL IN |
| Coil Quantity | 20 |
| Surface Treatment | OIL OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL UNS K08500 OVERALL |
| Hook Radius | 0.1875 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 |
|---|---|
| R31877 PRIMARY | Deere & Co (USA) |
NSN 5360-01-197-2278 is a Spring,helical,extension, manufactured by Deere & Co, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-197-2278 has 1 manufacturer part number on file: R31877 (Deere & Co).
Key specifications for R31877: Spring Free Outside Diameter: 0.500 INCHES NOMINAL IN; Load Rating: 21.00 POUNDS NOMINAL LBS; End Style: MACHINE LOOP BOTH ENDS; Design Type: CLOSED. 17 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.