The Relay-Solenoid,engine Starter,el, cataloged under National Stock Number 2920-01-253-7450, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Tcm America, Inc Sc. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-01-253-7450 |
| Primary Part Number | Z-1-81171-016-1 |
| Item Name | Relay-Solenoid,engine Starter,el |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Tcm America, Inc Sc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 HOLE |
| Nominal Voltage Rating | 12.0 VOLTS |
| Control Terminal Quantity | 1 |
| Submersibility | NONSUBMERSIBLE |
| 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 |
|---|---|
| Z-1-81171-016-1 PRIMARY | Tcm America, Inc Sc (USA) |
| 1-81171-016-1 | Isuzu Motors Limited (JPN) |
| Reference | Meaning |
|---|---|
| 1-81171-016-1 | 5/9 Secondary reference Isuzu Motor Co. Ltd |
NSN 2920-01-253-7450 is a Relay-Solenoid,engine Starter,el, manufactured by Tcm America, Inc Sc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-01-253-7450 has 2 manufacturer part numbers on file: Z-1-81171-016-1 (Tcm America, Inc Sc), 1-81171-016-1 (Isuzu Motors Limited).
Key specifications for Z-1-81171-016-1: Mounting Facility Type and Quantity: 1 HOLE; Nominal Voltage Rating: 12.0 VOLTS; Control Terminal Quantity: 1; Submersibility: NONSUBMERSIBLE. 4 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.