The Oscillator,noncrystal Controlled, cataloged under National Stock Number 5955-00-985-3948, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems Corporation Div Es Defensive Systems Division. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-985-3948 |
| Primary Part Number | 21-011172-01 |
| Item Name | Oscillator,noncrystal Controlled |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
| Status | ACTIVE |
| Circuit Construction Type | SOLID STATE |
| Overall Diameter | 0.625 INCHES NOMINAL IN |
| Average Power Rating Per Channel | 100.0 WATTS OUTPUT |
| Frequency Per Channel | 2.7 GIGAHERTZ MINIMUM OPERATING CHANNEL |
| Frequency Per Channel | 3.0 GIGAHERTZ MAXIMUM OPERATING CHANNEL |
| Basic Shape Style | CYLINDRICAL |
| Shock Resistance Rating in Gravitational Units | 100.0 |
| Maximum Operating Altitude Rating | 40000.0 FEET FT |
| Shock Pulse Duration Time | 7.0 MILLISECONDS MS |
| Frequency Shift | 5.0 MEGAHERTZ |
| Operating Temp Range | -20.0 TO 70.0 CELSIUS DEGC |
| 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 |
|---|---|
| 21-011172-01 | Northrop Grumman Systems Corporation Div Es Defensive Systems Division (USA) |
| Reference | Meaning |
|---|---|
| 9186-1042 | 5/9 Secondary reference Smiths Interconnect Inc Div Smiths Interconnect Inc - Tampa |
| 9186-1009 | 5/9 Secondary reference U.S. Government activity |
| 9186-1042 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5955-00-985-3948 is a Oscillator,noncrystal Controlled, manufactured by Northrop Grumman Systems Corporation Div Es Defensive Systems Division, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-985-3948 has 1 manufacturer part number on file: 21-011172-01 (Northrop Grumman Systems Corporation Div Es Defensive Systems Division).
Key specifications for 21-011172-01: Circuit Construction Type: SOLID STATE; Overall Diameter: 0.625 INCHES NOMINAL IN; Average Power Rating Per Channel: 100.0 WATTS OUTPUT; Frequency Per Channel: 2.7 GIGAHERTZ MINIMUM OPERATING CHANNEL. 11 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 5955-00-985-3948 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.