The Oscillator Subassembly, cataloged under National Stock Number 5955-00-993-7171, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5955-00-993-7171 |
| Primary Part Number | 491D343G02 |
| Item Name | Oscillator Subassembly |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Component Type and Quantity | 20 CAPACITOR AND 4 COIL AND 1 CRYSTAL AND 3 PAD AND 1 PRINTED WIRING BOARD AND 23 RESISTOR AND 3 TRANSFORMER AND 3 TRANSISTOR |
| 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 |
|---|---|
| 491D343G02 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 491D343G02 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5955-00-993-7171 is a Oscillator Subassembly, manufactured by Westinghouse Electric Corp, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-993-7171 has 1 manufacturer part number on file: 491D343G02 (Westinghouse Electric Corp).
Key specifications for 491D343G02: Overall Height: 2.000 INCHES NOMINAL IN; Component Type and Quantity: 20 CAPACITOR AND 4 COIL AND 1 CRYSTAL AND 3 PAD AND 1 PRINTED WIRING BOARD AND 23 RESISTOR AND 3 TRANSFORMER AND 3 TRANSISTOR; Overall Length: 8.500 INCHES NOMINAL IN; Overall Width: 4.250 INCHES NOMINAL IN. 1 specification is 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 5955-00-993-7171 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.