The Spring,helical,compression, cataloged under National Stock Number 5360-00-598-9901, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 10 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through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5360-00-598-9901 |
| Primary Part Number | 0T0278 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | CANCELLED |
| Spring Free Outside Diameter | 0.719 INCHES NOMINAL IN |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Spring Solid Length | 0.625 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 1.375 INCHES NOMINAL IN |
| Inside Diameter | 0.574 INCHES NOMINAL IN |
| Coil Quantity | 7 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Bore Diameter | 0.734 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 0T0278 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| SN6775PC5 | 5/9 Secondary reference Agco Corp Parts Opn |
| 07126A | 5/9 Secondary reference Cnh Industrial America Llc Dba Cnh America |
| X8711PC113 | 5/9 Secondary reference Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| B111PC113 | 5/9 Secondary reference Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| T278 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
| 21832 | 5/9 Secondary reference Klauer Manufacturing Company |
| 113 | 5/9 Secondary reference Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| 56994D | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 56994D | 5/9 Secondary reference U.S. Government activity |
| TY434 | 5/9 Secondary reference U.S. Government activity |
NSN 5360-00-598-9901 is a Spring,helical,compression, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: cancelled.
NSN 5360-00-598-9901 has 1 manufacturer part number on file: 0T0278 (Caterpillar Inc Div Caterpillar Defense).
6 possible matches (shared part number, not a government interchangeability claim): 2990-01-180-2150, 6685-01-200-4487, 6695-01-202-1206. Verify interchangeability with system specifications before substitution.
Key specifications for 0T0278: Spring Free Outside Diameter: 0.719 INCHES NOMINAL IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Solid Length: 0.625 INCHES NOMINAL IN; Style Designator: CYLINDRICAL. 10 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.
NSN 5360-00-598-9901 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.