The Terminal,lug, cataloged under National Stock Number 5940-00-581-3971, 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 Flexlab Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5940-00-581-3971 |
| Primary Part Number | L2BRED |
| Item Name | Terminal,lug |
| FSC / FSG | 5940 / 59 — Lugs, Terminals, and Terminal Strips |
| Manufacturer | Flexlab Inc |
| Status | ACTIVE |
| Identification Code Color | RED |
| Mounting Facility Thickness | 0.062 INCHES IN |
| Mounting Slot Width | 0.228 INCHES IN |
| Maximum Conductor Size Accommodated | 16 AWG |
| Basic Shape Style | CRIMP |
| Mounting Method Style | OPEN SLOT |
| Electrical Insulation Feature | INSULATING SLEEVE |
| Conductor Accommodation Type | STRAIGHT BARREL SINGLE END |
| Mounting Tongue Width | 0.625 INCHES IN |
| Material | COPPER ALLOY OVERALL EXCEPT INSULATION |
| Material | PLASTIC INSULATION |
| Material Thickness | 0.062 INCHES IN |
| 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 |
|---|---|
| L2BRED PRIMARY | Flexlab Inc (USA) |
| Reference | Meaning |
|---|---|
| L2B | 5/9 Secondary reference Standard Electric Time Corp |
| L2B | 5/1 Secondary reference Flexlab Inc |
| L2BRED | 5/9 Secondary reference Standard Electric Time Corp |
NSN 5940-00-581-3971 is a Terminal,lug, manufactured by Flexlab Inc, classified under FSC 5940, Lugs, Terminals, and Terminal Strips. Status: active.
NSN 5940-00-581-3971 has 1 manufacturer part number on file: L2BRED (Flexlab Inc).
6 possible matches (shared part number, not a government interchangeability claim): 5940-00-581-3977, 8405-00-817-0595, 8405-00-817-0596. Verify interchangeability with system specifications before substitution.
Key specifications for L2BRED: Identification Code Color: RED; Overall Length: 2.375 INCHES IN; Mounting Facility Thickness: 0.062 INCHES IN; Mounting Slot Width: 0.228 INCHES IN. 12 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.