The Interface Unit,input-Output, cataloged under National Stock Number 5998-01-668-1824, is classified within Federal Supply Class 5998 (Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: AY.
| Parameter | Value |
|---|---|
| NSN | 5998-01-668-1824 |
| Primary Part Number | 8598560 ITEM 3D4 |
| Item Name | Interface Unit,input-Output |
| FSC / FSG | 5998 / 59 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PROEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Shelf Life Code | 0 |
| Criticality Code | S |
| Unit of Issue | AY |
| Acquisition advice code | JH |
| Part Number | Manufacturer |
|---|---|
| 8598560 ITEM 3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 8598465-001D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 8598560 ITEM 3 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 8598465-001 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 5998-01-668-1824 is a Interface Unit,input-Output, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5998, Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware. Status: active.
NSN 5998-01-668-1824 has 2 manufacturer part numbers on file: 8598560 ITEM 3D4 (Naval Inventory Control Point Mechanicsburg), 8598465-001D4 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 8598560 ITEM 3D4: Criticality Code Justification: ZZZY; Part Name Assigned by Controlling Agency: INTERCOM,JUNTION; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PROEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES. 2 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.