The Computer Subassembly, cataloged under National Stock Number 7021-01-540-6592, is classified within Federal Supply Class 7021 (Information Technology Central Processing Unit (cpu, Computer), Digital) of the General Purpose ADP Equipment group. The manufacturer of record is Gdca, Inc.. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 7021-01-540-6592 |
| Primary Part Number | EPC5A |
| Item Name | Computer Subassembly |
| FSC / FSG | 7021 / 70 — Information Technology Central Processing Unit (cpu, Computer), Digital |
| Manufacturer | Gdca, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| EPC5A PRIMARY | Gdca, Inc. (USA) |
| Reference | Meaning |
|---|---|
| EPC5A | 5/9 Secondary reference Radisys Corporation |
NSN 7021-01-540-6592 is a Computer Subassembly, manufactured by Gdca, Inc., classified under FSC 7021, Information Technology Central Processing Unit (cpu, Computer), Digital. Status: active.
NSN 7021-01-540-6592 has 1 manufacturer part number on file: EPC5A (Gdca, Inc.).
Key specifications for EPC5A: Special Features: THE EPC-5A IS A PC/AT COMPATIBLE EMBEDDED CPU MODULE CONTAINING THE FOLLOWING:100 MHZ INTEL486 DX4 PROCESSOR, RADISYS R400EX CHIPSET, 16 KBYTES OF CACHE AND MATH CO-PROCESSOR ON-CHIP, 4 MB TO 256 MB OF DRAM MEMORY, KEYBOARD INTERFACE, 2 STANDARD 9-PIN DTE SERIAL PORTS (COM1 AND COM2), 1 STANDARD OUTPUT-ONLY PARALLEL PORT (LPT1), TIME-OF-DAY CLOCK WITH USER-REPLACEABLE BATTERY, PHOENIX 486 BIOS VERSION 4.05, VMEBUS INTERFACE, AND EXM EXPANSION INTERFACE;THE EPC-5A FORM FACTOR HAS BEEN DESIGNED TO THE VMEBUS SPECIFICATION (6U);IT PROVIDES DIRECT COMMUNICATION TO ALL THREE VMEBUS ADDRESS SPACES (A32, A24, AND A16);THE EPC-5A DRAM PERMITS DUAL-PORTED ACCESS FROM BOTH THE PC SIDE AND THE VME SIDE MB; Part Name Assigned by Controlling Agency: EPC-5A PROCESSOR MODULE A. 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.
NSN 7021-01-540-6592 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.