The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-434-8935, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5955-01-434-8935 |
| Primary Part Number | 5270303 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| Status | ACTIVE |
| Controlled Reference Temp | 78.0 CELSIUS DEGC |
| Operable Temp Range | +54.0 TO 90.0 CELSIUS DEGC |
| Frequency Tolerance for Operating Temp in Percent | -0.0001 TO 0.0001 |
| Precious Material | GOLD |
| Mode of Oscillation | THIRD OVERTONE |
| Equivalent Resistance Value in Ohms | 60.0 MAXIMUM |
| Specification/standard Data | 82577-H950055 MANUFACTURERS SPECIFICATION CONTROL |
| Circuit Resonance | SERIES RESONANCE |
| Shunt Capacitance in Picofarads | 3.0 MINIMUM AND 4.0 MAXIMUM |
| Precious Material and Location | LEAD SURFACES GOLD |
| Operating Temp Range | +60.0 TO 90.0 CELSIUS DEGC |
| Specified Frequency | 805.000 MEGAHERTZ |
| 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 |
|---|---|
| K3173-2B | Bliley Technologies Inc (USA) |
| 5270303 PRIMARY | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| Reference | Meaning |
|---|---|
| H950055-002B | 7/2 Vendor item drawing reference U.S. Government activity |
| 5270303 | 5/9 Secondary reference Piezo Crystal Co |
NSN 5955-01-434-8935 is a Crystal Unit,quartz, manufactured by Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-434-8935 has 2 manufacturer part numbers on file: K3173-2B (Bliley Technologies Inc), 5270303 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled).
1 possible match (shared part number, not a government interchangeability claim): 3455-01-447-6730. Verify interchangeability with system specifications before substitution.
Key specifications for 5270303: Controlled Reference Temp: 78.0 CELSIUS DEGC; Operable Temp Range: +54.0 TO 90.0 CELSIUS DEGC; Frequency Tolerance for Operating Temp in Percent: -0.0001 TO 0.0001; Precious Material: GOLD. 12 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 5955-01-434-8935 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.