The Spring,helical,extension, cataloged under National Stock Number 5360-01-438-3938, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Dictaphone Corporation. Government technical data includes 4 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-438-3938 |
| Primary Part Number | 400498 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Dictaphone Corporation |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.185 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 1.720 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 400498 PRIMARY | Dictaphone Corporation (USA) |
NSN 5360-01-438-3938 is a Spring,helical,extension, manufactured by Dictaphone Corporation, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-438-3938 has 1 manufacturer part number on file: 400498 (Dictaphone Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-538-5785. Verify interchangeability with system specifications before substitution.
Key specifications for 400498: Spring Free Outside Diameter: 0.185 INCHES NOMINAL IN; Style Designator: CYLINDRICAL; Spring Free Length: 1.720 INCHES NOMINAL IN; Material: STEEL OVERALL. 4 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.