The Computer Subassembly, cataloged under National Stock Number 7021-01-359-3405, is classified within Federal Supply Class 7021 (Information Technology Central Processing Unit (cpu, Computer), Digital) of the General Purpose ADP Equipment group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 7021-01-359-3405 |
| Item Name | Computer Subassembly |
| FSC / FSG | 7021 / 70 — Information Technology Central Processing Unit (cpu, Computer), Digital |
| 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 | N |
| Reference | Meaning |
|---|---|
| 73005-19 | 7/9 Vendor item drawing reference General Dynamics Global Imaging Technologies, Inc. Div Global Imaging Technologies |
| 286XP-DN01 | 3/9 Design control — primary reference Citadel Computer Corporation |
| 73005-19 | C/1 Advisory reference — outside the item-of-supply concept Contour Metrological & Manufacturing, Inc Div Cmm Optic |
NSN 7021-01-359-3405 is a Computer Subassembly, classified under FSC 7021, Information Technology Central Processing Unit (cpu, Computer), Digital. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-624-6454. Verify interchangeability with system specifications before substitution.
Key specifications for 7021-01-359-3405: Overall Length: 8.500 INCHES NOMINAL IN; Overall Width: 7.125 INCHES NOMINAL IN; Special Features: COMPONENTS INCLUDE 2 RS-232C SERIAL COMM PORTS; 2 EIA STANDARD RS-485/RS-422-A COMM PORTS; 1 FULLY IMPLEMENTED 8255 24 BIT I/0 PORT; STANDARD FLOPPY DRIVE INTERFACE CAPABLE OF HANDLING BOTH LOW DENSITY AND HIGH DENSITY ON EITHER 5-1/4 IN. OR 3-1/2 IN MEDIA FORMATS; 1 STANDARD PARALLEL PORT IN. 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 7021-01-359-3405 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.