The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-388-2640, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L-3 Services, Inc. Dba Command & Control Systems Software & Expeditionary Operation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-388-2640 |
| Primary Part Number | 985610-010 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | L-3 Services, Inc. Dba Command & Control Systems Software & Expeditionary Operation |
| Status | ACTIVE |
| Overall Diameter | 0.375 INCHES MAXIMUM IN |
| Style Designator | HAT TYPE, 5 WIRE LEADS |
| Diameter | 0.325 INCHES MAXIMUM IN |
| Operating Temp Range | -55.0 TO 125.0 CELSIUS DEGC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 985610-010 PRIMARY | L-3 Services, Inc. Dba Command & Control Systems Software & Expeditionary Operation (USA) |
| Reference | Meaning |
|---|---|
| 985610-010 | 5/9 Secondary reference Titan Corp the |
NSN 5955-01-388-2640 is a Crystal Unit,quartz, manufactured by L-3 Services, Inc. Dba Command & Control Systems Software & Expeditionary Operation, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-388-2640 has 1 manufacturer part number on file: 985610-010 (L-3 Services, Inc. Dba Command & Control Systems Software & Expeditionary Operation).
Key specifications for 985610-010: Overall Diameter: 0.375 INCHES MAXIMUM IN; Style Designator: HAT TYPE, 5 WIRE LEADS; Diameter: 0.325 INCHES MAXIMUM IN; Overall Length: 0.260 INCHES MAXIMUM IN. 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.
NSN 5955-01-388-2640 has DEMIL Code Q. 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.