The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-326-6834, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Seiko Instruments U.s.a. Inc.. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5955-01-326-6834 |
| Primary Part Number | DS327 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Seiko Instruments U.s.a. Inc. |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.005 TO 0.005 |
| Terminal Diameter | 0.017 INCHES NOMINAL IN |
| Terminal Length | 0.788 INCHES NOMINAL IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.395 INCHES NOMINAL IN |
| Equivalent Resistance Value in Ohms | 70.0 MAXIMUM |
| Overall Thickness | 0.183 INCHES NOMINAL IN |
| Style Designator | OVAL BODY, WIRE LEADS |
| Drive Level Rating | 3.0 MILLIWATTS NOMINAL |
| Specification/standard Data | 25512-230001-327 MANUFACTURERS SPECIFICATION CONTROL |
| Center to Center Distance Between Terminals | 0.192 INCHES NOMINAL IN |
| Load Capacitance in Picofarads | 15.0 NOMINAL |
| Circuit Resonance | ANTIRESONANCE |
| Shunt Capacitance in Picofarads | 7.0 MAXIMUM |
| Operating Temp Range | +0.0 TO 70.0 CELSIUS DEGC |
| Specified Frequency | 3.2768 MEGAHERTZ |
| Body Thickness | 0.147 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| DS327 PRIMARY | Seiko Instruments U.s.a. Inc. (USA) |
| NYP032A-15 PRIMARY | Saronix (USA) |
| Reference | Meaning |
|---|---|
| 230001-327 | 7/2 Vendor item drawing reference U.S. Government activity |
| 230001-327 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5955-01-326-6834 is a Crystal Unit,quartz, manufactured by Seiko Instruments U.s.a. Inc., classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-326-6834 has 2 manufacturer part numbers on file: DS327 (Seiko Instruments U.s.a. Inc.), NYP032A-15 (Saronix).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-445-6668. Verify interchangeability with system specifications before substitution.
Key specifications for DS327: Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005; Terminal Diameter: 0.017 INCHES NOMINAL IN; Terminal Length: 0.788 INCHES NOMINAL IN; Mode of Oscillation: FUNDAMENTAL. 17 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 5955-01-326-6834 has DEMIL Code B. 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.