The Oscillator,crystal Controlled, cataloged under National Stock Number 5955-01-302-2420, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). Government technical data includes 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-302-2420 |
| Primary Part Number | 9900-00018 |
| Item Name | Oscillator,crystal Controlled |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | ACTIVE |
| Circuit Construction Type | SOLID STATE |
| Inclosure Type | ENCASED |
| Control Type | LOCAL |
| Frequency Per Channel | 40.0 MEGAHERTZ NOMINAL OPERATING CHANNEL |
| Connection Type | PIN BOTTOM |
| Connection Contact Type and Quantity | 4 PIN EXTERNAL |
| Operating Control Method | MANUAL |
| Basic Shape Style | RECTANGULAR OR SQUARE |
| Identification Designator | 9900-00018-K0656 |
| Average Life Measurement | NOT RATED |
| Environmental Protection | MOISTURE PROOF |
| Operating Temp Range | -55.0 TO 100.0 CELSIUS DEGC |
| Installation Design | MODULE |
| 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 |
|---|---|
| 9900-00018 PRIMARY | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| Reference | Meaning |
|---|---|
| 9900-00018 | 5/9 Secondary reference Spectrum Technology Inc |
| 9900-00018 | C/1 Advisory reference — outside the item-of-supply concept Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| 9900-00018 | 5/9 Secondary reference Electronic Research Company |
| 9900-00018 | 7/2 Vendor item drawing reference Bae Systems (operations) Limited |
NSN 5955-01-302-2420 is a Oscillator,crystal Controlled, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-302-2420 has 1 manufacturer part number on file: 9900-00018 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)).
Key specifications for 9900-00018: Circuit Construction Type: SOLID STATE; Overall Height: 0.644 INCHES NOMINAL IN; Inclosure Type: ENCASED; Control Type: LOCAL. 13 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 5955-01-302-2420 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.