The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-212-7975, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Standard Crystal Corp. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5955-01-212-7975 |
| Primary Part Number | 513937 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Standard Crystal Corp |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.050 TO 0.050 |
| Terminal Diameter | 0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN |
| Terminal Length | 1.500 INCHES NOMINAL IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.402 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 250.0 MAXIMUM |
| Overall Thickness | 0.183 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Drive Level Rating | 1.0 MILLIWATTS NOMINAL AND 0.8 MILLIWATTS MINIMUM AND 1.2 MILLIWATTS MAXIMUM |
| Center to Center Distance Between Terminals | 0.192 INCHES NOMINAL IN |
| Load Capacitance in Picofarads | 15.0 NOMINAL |
| Circuit Resonance | ANTIRESONANCE |
| Operating Temp Range | +0.0 TO 70.0 CELSIUS DEGC |
| Material | GLASS COVER HOLDER |
| Specified Frequency | 3.200 MEGAHERTZ |
| Body Thickness | 0.150 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 513937 | Standard Crystal Corp (USA) |
| Reference | Meaning |
|---|---|
| 513937 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5955-01-212-7975 is a Crystal Unit,quartz, manufactured by Standard Crystal Corp, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-212-7975 has 1 manufacturer part number on file: 513937 (Standard Crystal Corp).
1 possible match (shared part number, not a government interchangeability claim): 6625-01-295-6978. Verify interchangeability with system specifications before substitution.
Key specifications for 513937: Frequency Tolerance for Operating Temp in Percent: -0.050 TO 0.050; Terminal Diameter: 0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN; Terminal Length: 1.500 INCHES NOMINAL IN; Mode of Oscillation: FUNDAMENTAL. 16 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.
NSN 5955-01-212-7975 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.