The Tester,spring Resiliency, cataloged under National Stock Number 6635-01-124-1771, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6635-01-124-1771 |
| Primary Part Number | 441-0714 |
| Item Name | Tester,spring Resiliency |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Mounting Method | PORTABLE |
| Spring Type for Which Designed | COMPRESSION |
| Torque Indicating Wrench Usage Feature | NOT INCLUDED |
| Unit Type | MECHANICAL |
| Spring Travel Gage | NOT INCLUDED |
| Operation Method | MANUAL |
| 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 |
|---|---|
| 441-0714 | Finning (uk) Ltd (GBR) |
| 28KP866 | Oshkosh Defense Llc (USA) |
| 441-0714 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 441-0714 | Caterpillar (uk) Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 8S2263 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
| 28KP866 | 5/9 Secondary reference Oshkosh Corp |
NSN 6635-01-124-1771 is a Tester,spring Resiliency, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
NSN 6635-01-124-1771 has 4 manufacturer part numbers on file: 441-0714 (Finning (uk) Ltd), 28KP866 (Oshkosh Defense Llc), 441-0714 (Caterpillar Inc Div Caterpillar Defense), 441-0714 (Caterpillar (uk) Ltd).
Key specifications for 441-0714: Mounting Method: PORTABLE; Spring Type for Which Designed: COMPRESSION; Torque Indicating Wrench Usage Feature: NOT INCLUDED; Unit Type: MECHANICAL. 6 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.