The Spring,helical,extension, cataloged under National Stock Number 5360-01-475-7681, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5360-01-475-7681 |
| Primary Part Number | 3D73197-001 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 19.700 INCHES MINIMUM AND 20.300 INCHES MAXIMUM IN |
| Spring Deflection Rate | 1.950 POUNDS PER INCH NOMINAL LBS |
| Coil Helix Direction | RIGHT-HAND |
| 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 |
|---|---|
| 3D73197-001 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 3D73197-001 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 1135E43FN19 | D/9 Drawing number reference only U.S. Government activity |
NSN 5360-01-475-7681 is a Spring,helical,extension, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-475-7681 has 1 manufacturer part number on file: 3D73197-001 (Northrop Grumman Systems Corporation).
Key specifications for 3D73197-001: End Style: SHORT TWISTED HOOK BOTH ENDS; Style Designator: CYLINDRICAL; Spring Free Length: 19.700 INCHES MINIMUM AND 20.300 INCHES MAXIMUM IN; Spring Deflection Rate: 1.950 POUNDS PER INCH NOMINAL LBS. 5 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.