The Oscillating Group, cataloged under National Stock Number 5955-01-072-5535, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Leach International Corp Div Leach International Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-072-5535 |
| Primary Part Number | T901XFX-B1 |
| Item Name | Oscillating Group |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Leach International Corp Div Leach International Corporation |
| Status | ACTIVE |
| Nuclear Hardness Critical Feature | HARDENED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | H |
| Part Number | Manufacturer |
|---|---|
| T901XFX-B1 PRIMARY | Leach International Corp Div Leach International Corporation (USA) |
| MC102A1-019B PRIMARY | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| MC102A1-003B | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| MCM432-2B PRIMARY | Q-Tech Corp Dba Q-Tech Corp (USA) |
| Reference | Meaning |
|---|---|
| 930741-2B | 7/2 Vendor item drawing reference U.S. Government activity |
| MC102A1 | 5/9 Secondary reference Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| 930741 | D/9 Drawing number reference only U.S. Government activity |
| MCM432-1B | 5/9 Secondary reference Q-Tech Corp Dba Q-Tech Corp |
| 930741-1B | 5/9 Secondary reference U.S. Government activity |
NSN 5955-01-072-5535 is a Oscillating Group, manufactured by Leach International Corp Div Leach International Corporation, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-072-5535 has 4 manufacturer part numbers on file: T901XFX-B1 (Leach International Corp Div Leach International Corporation), MC102A1-019B (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), MC102A1-003B (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), MCM432-2B (Q-Tech Corp Dba Q-Tech Corp).
Key specifications for T901XFX-B1: Special Features: NUCLEAR HARDNESS CRITICAL ITEMS; Nuclear Hardness Critical Feature: HARDENED. 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 5955-01-072-5535 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.