The Terminal,lug, cataloged under National Stock Number 5940-00-903-7754, 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 Zierick Mfg Corp. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5940-00-903-7754 |
| Primary Part Number | 508-257 |
| Item Name | Terminal,lug |
| FSC / FSG | 5940 / 59 — Lugs, Terminals, and Terminal Strips |
| Manufacturer | Zierick Mfg Corp |
| Status | ACTIVE |
| Mounting Facility Thickness | 0.025 INCHES IN |
| Mounting Hole Diameter | 0.257 INCHES IN |
| Maximum Conductor Size Accommodated | 6 AWG |
| Basic Shape Style | SOLDER |
| Mounting Method Style | RING |
| Electrical Insulation Feature | UNINSULATED |
| Conductor Accommodation Type | FLAT LUG W/SINGLE NOTCH ON EACH SIDE SINGLE END |
| Largest Width | 0.188 INCHES SINGLE END IN |
| Surface Treatment | TIN OVERALL SINGLE LAYER |
| Mounting Tongue Width | 0.500 INCHES IN |
| Material | STEEL OVERALL |
| Material Thickness | 0.025 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 |
|---|---|
| 508-257 PRIMARY | Zierick Mfg Corp (USA) |
| Reference | Meaning |
|---|---|
| 1145158 | 5/9 Secondary reference Smiths Detection Inc. Dba Smiths Detection Inc Casc |
| 979 | C/1 Advisory reference — outside the item-of-supply concept Stewart Stamping Corp Sub of Insilco Corp |
| 508 | D/9 Drawing number reference only Zierick Mfg Corp |
NSN 5940-00-903-7754 is a Terminal,lug, manufactured by Zierick Mfg Corp, classified under FSC 5940, Lugs, Terminals, and Terminal Strips. Status: active.
NSN 5940-00-903-7754 has 1 manufacturer part number on file: 508-257 (Zierick Mfg Corp).
3 possible matches (shared part number, not a government interchangeability claim): 5940-00-926-8186, 5340-01-500-1108, 1680-01-518-6384. Verify interchangeability with system specifications before substitution.
Key specifications for 508-257: Overall Length: 1.656 INCHES IN; Mounting Facility Thickness: 0.025 INCHES IN; Mounting Hole Diameter: 0.257 INCHES IN; Maximum Conductor Size Accommodated: 6 AWG. 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.