The Oscillator,crystal Controlled, cataloged under National Stock Number 5955-01-441-9733, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-441-9733 |
| Primary Part Number | 185A451 |
| Item Name | Oscillator,crystal Controlled |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Circuit Construction Type | SOLID STATE |
| Inclosure Type | HERMETICALLY SEALED |
| Criticality Code Justification | FEAT |
| Basic Shape Style | RECTANGULAR OR SQUARE |
| Average Life Measurement | INDEFINITE |
| Nuclear Hardness Critical Feature | HARDENED |
| Installation Design | FREE-STANDING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | M |
| Part Number | Manufacturer |
|---|---|
| 185A451 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| NH-185A451 | 5/1 Secondary reference Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| MC620X2-006 | 5/1 Secondary reference Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
NSN 5955-01-441-9733 is a Oscillator,crystal Controlled, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-441-9733 has 1 manufacturer part number on file: 185A451 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 185A451: Circuit Construction Type: SOLID STATE; Overall Height: 0.295 INCHES NOMINAL IN; Inclosure Type: HERMETICALLY SEALED; Criticality Code Justification: FEAT. 7 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 5955-01-441-9733 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.