The Oscillating Group, cataloged under National Stock Number 5955-01-025-8111, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Frequency Electronics Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Oscillating Group |
| FSC / FSG | 5955 — Oscillators and Piezoelectric Crystals (FSG 59) |
| Manufacturers | Frequency Electronics Inc (CAGE 14844); Alliant Techsystems Operations Llc Div Defense Electronic Systems (CAGE 06424) |
| Parameter | Value |
|---|---|
| NSN | 5955-01-025-8111 |
| Primary Part Number | D16320-4907 |
| Item Name | Oscillating Group |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Frequency Electronics Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | V |
| Part Number | Manufacturer |
|---|---|
| D16320-4907 PRIMARY | Frequency Electronics Inc (USA) |
| 12139-1 | Alliant Techsystems Operations Llc Div Defense Electronic Systems (USA) |
| Reference | Meaning |
|---|---|
| 247ASC2567-001 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5955-01-025-8111 is a Oscillating Group, manufactured by Frequency Electronics Inc, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-025-8111 has 2 manufacturer part numbers on file: D16320-4907 (Frequency Electronics Inc), 12139-1 (Alliant Techsystems Operations Llc Div Defense Electronic Systems).
4 possible matches (shared part number, not a government interchangeability claim): 6145-01-300-1108, 6150-01-339-1198, 4820-01-423-4383. Verify interchangeability with system specifications before substitution.
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 5955-01-025-8111 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.