The Duplexer Section Tr, cataloged under National Stock Number 6930-00-931-4953, is classified within Federal Supply Class 6930 (Operation Training Devices) of the Training Aids and Devices group. The manufacturer of record is Instruments and Flight Research, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Duplexer Section Tr |
| FSC / FSG | 6930 — Operation Training Devices (FSG 69) |
| Manufacturers | Instruments and Flight Research, Inc. (CAGE 22525) |
| Parameter | Value |
|---|---|
| NSN | 6930-00-931-4953 |
| Primary Part Number | 538325-4REVA |
| Item Name | Duplexer Section Tr |
| FSC / FSG | 6930 / 69 — Operation Training Devices |
| Manufacturer | Instruments and Flight Research, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 538325-4REVA PRIMARY | Instruments and Flight Research, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2418 | 5/9 Secondary reference Airtec Inc Dba Airtec-Unique |
NSN 6930-00-931-4953 is a Duplexer Section Tr, manufactured by Instruments and Flight Research, Inc., classified under FSC 6930, Operation Training Devices. Status: active.
NSN 6930-00-931-4953 has 1 manufacturer part number on file: 538325-4REVA (Instruments and Flight Research, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5360-01-067-4029, 4720-01-311-0329. 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.
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.