The Sampling Head,frequency Signal, cataloged under National Stock Number 4920-00-337-4612, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Credence Systems Corp. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4920-00-337-4612 |
| Primary Part Number | S1 |
| Item Name | Sampling Head,frequency Signal |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Credence Systems Corp |
| Status | ACTIVE |
| Reference Data and Literature | T.O. 33D7-44-213-4 AND 33A1-13-434-11 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S1 PRIMARY | Credence Systems Corp (USA) |
| 2129546-1 | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA) |
| Reference | Meaning |
|---|---|
| 2129546-1 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
| S1 | 5/9 Secondary reference U.S. Government activity |
NSN 4920-00-337-4612 is a Sampling Head,frequency Signal, manufactured by Credence Systems Corp, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-337-4612 has 2 manufacturer part numbers on file: S1 (Credence Systems Corp), 2129546-1 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div).
Key specifications for S1: Overall Height: 1.750 INCHES NOMINAL IN; Reference Data and Literature: T.O. 33D7-44-213-4 AND 33A1-13-434-11; Overall Length: 4.500 INCHES NOMINAL IN; Overall Width: 2.000 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.
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.