The Holder,crystal Unit, cataloged under National Stock Number 5955-00-296-5402, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5955-00-296-5402 |
| Item Name | Holder,crystal Unit |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 THREADED BASE SINGLE MOUNTING FACILITY |
| Overall Diameter | 0.562 INCHES NOMINAL IN |
| Precious Material | SILVER |
| Style Designator | CYLINDRICAL |
| Accommodated Item Securing Device Type | SPRING CLIP |
| Nominal Thread Size | 0.438 INCHES SINGLE MOUNTING FACILITY IN |
| Surface Treatment | SILVER |
| Precious Material and Location | SURFACE SILVER |
| Material | COPPER ALLOY |
| Thread Series Designator | UNEF SINGLE MOUNTING FACILITY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 409910 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5955-00-296-5402 is a Holder,crystal Unit, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2520-00-845-2647. Verify interchangeability with system specifications before substitution.
Key specifications for 5955-00-296-5402: Mounting Facility Type and Quantity: 1 THREADED BASE SINGLE MOUNTING FACILITY; Overall Diameter: 0.562 INCHES NOMINAL IN; Precious Material: SILVER; 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.