The Spring,helical,extension, cataloged under National Stock Number 5360-01-027-8847, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Kalmar AC Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-027-8847 |
| Primary Part Number | 74906148-7 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Load Rating | 22.00 POUNDS NOMINAL LBS |
| End Style | REDUCED HOOK FIRST END |
| End Style | SINGLE FULL LOOP SECOND END |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | ASTM A229 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Spring Free Length | 3.518 INCHES NOMINAL IN |
| Spring Deflection Rate | 26.120 POUNDS PER INCH NOMINAL LBS |
| Coil to Hook Inside Length | 0.491 INCHES MINIMUM SECOND END IN |
| Coil to Hook Inside Length | 0.930 INCHES MINIMUM FIRST END IN |
| Inside Diameter | 0.639 INCHES MINIMUM AND 0.663 INCHES MAXIMUM IN |
| Spring Length Under Load | 3.380 INCHES NOMINAL IN |
| Coil Quantity | 18-3/4 |
| Surface Treatment | VARNISH OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 1065 OR STEEL UNS K07001 OVERALL |
| Hook Radius | 0.190 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 |
|---|---|
| 74906148-7 PRIMARY | Kalmar AC Inc (USA) |
| Reference | Meaning |
|---|---|
| 4906148 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 323608 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5360-01-027-8847 is a Spring,helical,extension, manufactured by Kalmar AC Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-027-8847 has 1 manufacturer part number on file: 74906148-7 (Kalmar AC Inc).
Key specifications for 74906148-7: Spring Free Outside Diameter: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Load Rating: 22.00 POUNDS NOMINAL LBS; End Style: REDUCED HOOK FIRST END; End Style: SINGLE FULL LOOP SECOND END. 18 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.