The Terminal Board, cataloged under National Stock Number 5940-00-479-9507, 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 Hermetic Seal Corporation Div Ametek Inc.. Government technical data includes 14 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5940-00-479-9507 |
| Primary Part Number | 12728-3SS4 |
| Item Name | Terminal Board |
| FSC / FSG | 5940 / 59 — Lugs, Terminals, and Terminal Strips |
| Manufacturer | Hermetic Seal Corporation Div Ametek Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 FRICTION |
| Body Style | STRIP TYPE |
| Board Thickness | 0.088 INCHES IN |
| Terminal Design | VERTICAL FEEDTHRU |
| Feedthru Connection End Type | 441 BOTH ENDS SINGLE COMBINATION |
| Center to Center Distance Between Terminals | 0.100 INCHES IN |
| Terminal Row Quantity | 1 |
| Board Overall Width | 0.081 INCHES IN |
| Terminal Pattern Arrangement | SINGLE ROW |
| Material | COPPER ALLOY TERMINALS |
| Material | COPPER ALLOY BOARD |
| Board Overall Length | 0.281 INCHES IN |
| Board Construction | SOLID CONSTRUCTION |
| Feedthru Terminal Quantity | 3 SINGLE COMBINATION |
| 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 |
|---|---|
| 12728-3SS4 | Hermetic Seal Corporation Div Ametek Inc. (USA) |
| Reference | Meaning |
|---|---|
| 300-156-4 | 5/2 Secondary reference U.S. Government activity |
| 952244-4 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| A8049-4 | 3/9 Design control — primary reference Astro Seal, Inc |
| 18552-3SC21-4 | 5/9 Secondary reference Networks Electronic Company, Llc |
NSN 5940-00-479-9507 is a Terminal Board, manufactured by Hermetic Seal Corporation Div Ametek Inc., classified under FSC 5940, Lugs, Terminals, and Terminal Strips. Status: active.
NSN 5940-00-479-9507 has 1 manufacturer part number on file: 12728-3SS4 (Hermetic Seal Corporation Div Ametek Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5310-00-841-1131. Verify interchangeability with system specifications before substitution.
Key specifications for 12728-3SS4: Mounting Facility Type and Quantity: 1 FRICTION; Body Style: STRIP TYPE; Board Thickness: 0.088 INCHES IN; Terminal Design: VERTICAL FEEDTHRU. 14 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.