The Spring,helical,extension, cataloged under National Stock Number 5360-00-312-4845, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is The Dewey Electronics Corporation Div Pitometer Log Division. 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through both NSN and commercial part number lookups. 49 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-312-4845 |
| Primary Part Number | K42 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | The Dewey Electronics Corporation Div Pitometer Log Division |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.219 INCHES NOMINAL IN |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 2.427 INCHES NOMINAL IN |
| Inside Diameter | 0.167 INCHES NOMINAL IN |
| Coil Quantity | 80 |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.063 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 |
|---|---|
| K42 PRIMARY | The Dewey Electronics Corporation Div Pitometer Log Division (USA) |
| Reference | Meaning |
|---|---|
| 24-1EPC46 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 14-3AITEM43 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 226-3ALT1ITEM15 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 15-12ITEM53 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| S1344ITEM48 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 18-31ITEM56 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 7-2BPC45 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 8-4MPC45 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 16-2ALT2ITEM52 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 16-8ITEM54 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 18-16ITEM44 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 7-1JPC45 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 223-7ITEM17 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 40ALT2PC45 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 8-4PC45 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 7-1EALT1PC45 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 207-5ALT1PC45 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 8-4CPC45 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 8-4EPC45 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
| 8-4LPC45 | 5/9 Secondary reference The Dewey Electronics Corporation Div Pitometer Log Division |
NSN 5360-00-312-4845 is a Spring,helical,extension, manufactured by The Dewey Electronics Corporation Div Pitometer Log Division, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-312-4845 has 1 manufacturer part number on file: K42 (The Dewey Electronics Corporation Div Pitometer Log Division).
5 possible matches (shared part number, not a government interchangeability claim): 4320-00-588-0638, 5999-00-907-5566, 5120-01-335-8627. Verify interchangeability with system specifications before substitution.
Key specifications for K42: Spring Free Outside Diameter: 0.219 INCHES NOMINAL IN; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED; 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.
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.