The Block Protector,spe, cataloged under National Stock Number 5940-01-334-7737, is classified within Federal Supply Class 5940 (Lugs, Terminals, and Terminal Strips) of the Electrical and Electronic Equipment Components group. The manufacturer of record is U S Dept of Transportation Federal Aviation Administration. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5940-01-334-7737 |
| Primary Part Number | 1A20319H02 |
| Item Name | Block Protector,spe |
| FSC / FSG | 5940 / 59 — Lugs, Terminals, and Terminal Strips |
| Manufacturer | U S Dept of Transportation Federal Aviation Administration |
| Status | ACTIVE |
| 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 |
|---|---|
| 1A20319H02 PRIMARY | U S Dept of Transportation Federal Aviation Administration (USA) |
| R66P25QC | U S Dept of Transportation Federal Aviation Administration (USA) |
| Reference | Meaning |
|---|---|
| 1A20319H02 | 5/9 Secondary reference Reliance Comm/tec Corp Reliable Electric Div Utility Products |
| R66P25QC | 5/9 Secondary reference Reliance Comm/tec Corp Reliable Electric Div Utility Products |
| R66P25QC | 5/9 Secondary reference Reliance Comm/tec Corp Group Hqs |
NSN 5940-01-334-7737 is a Block Protector,spe, manufactured by U S Dept of Transportation Federal Aviation Administration, classified under FSC 5940, Lugs, Terminals, and Terminal Strips. Status: active.
NSN 5940-01-334-7737 has 2 manufacturer part numbers on file: 1A20319H02 (U S Dept of Transportation Federal Aviation Administration), R66P25QC (U S Dept of Transportation Federal Aviation Administration).
Key specifications for 1A20319H02: Special Features: FUNCTION, BLOCK PROTECTOR, INTERFACE; REFERENCE DATA, N1N1N1A16A2, TI-6310.24, FA 10064, PG 8-6 (AOS) PG 8-26, WESTINGHOUSE; N1N1A43A1, TI-6310.34, FA 10064, PG 8-2 (AOS) PG 8-3, WESTINGHOUSE; End Item Identification: AIRPORT SURVEILLANCE RADAR 9 (ASR9). 0 specifications are 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.