The Module,protection,relay-Solenoid, cataloged under National Stock Number 2920-01-287-3168, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is M-B Companies, Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-01-287-3168 |
| Primary Part Number | 81720 |
| Item Name | Module,protection,relay-Solenoid |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | M-B Companies, 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 |
|---|---|
| 81720 PRIMARY | M-B Companies, Inc (USA) |
NSN 2920-01-287-3168 is a Module,protection,relay-Solenoid, manufactured by M-B Companies, Inc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-01-287-3168 has 1 manufacturer part number on file: 81720 (M-B Companies, Inc).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-417-8678. Verify interchangeability with system specifications before substitution.
Key specifications for 81720: End Item Identification: GM-B COMPANY SNOWBROOM. 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.