The Relay,solid State, cataloged under National Stock Number 5945-01-139-2376, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Hamlin Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-139-2376 |
| Primary Part Number | 7521D |
| Item Name | Relay,solid State |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Hamlin Inc |
| 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 |
|---|---|
| 7521D PRIMARY | Hamlin Inc (USA) |
| Reference | Meaning |
|---|---|
| 7521D | 5/9 Secondary reference Drs Sustainment Systems, Inc. |
| 7521D | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| HSZ-1D10 | 5/9 Secondary reference Elec-Trol Inc |
| ES6302-01 | 5/9 Secondary reference Drs Sustainment Systems, Inc. |
NSN 5945-01-139-2376 is a Relay,solid State, manufactured by Hamlin Inc, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-139-2376 has 1 manufacturer part number on file: 7521D (Hamlin Inc).
Key specifications for 7521D: Special Features: INPUT VOLTAGE 3 TO 32 VDC; 3 MA INPUT CURRENT; 0.5 VDC TURN OFF VOLTAGE; 10 AMPS AT 120 VAC; 2.250 IN. LG; 1.750 IN. W; 0.875 IN. H; TWO 0.177 IN. DIA MTG HOLES SPACED 1.875 IN. C TO C VDC. 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.