The Delay Line, cataloged under National Stock Number 5999-01-045-1859, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Air Transport Mfg Co. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-045-1859 |
| Primary Part Number | 1573943 |
| Item Name | Delay Line |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Air Transport Mfg Co |
| Status | ACTIVE |
| Signal Delay Method | ELECTROMECHANICAL |
| Section Delay Time | 41.850 MICROSECONDS MINIMUM SINGLE SECTION AND 42.150 MICROSECONDS MAXIMUM SINGLE SECTION US |
| Output Impedance Rating | 50.000 OHMS |
| Individual Section Quantity | 1 |
| Input Impedance Rating | 50.000 OHMS |
| Frequency Rating | 30.000 MEGAHERTZ NOMINAL |
| Body Depth | 0.050 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | X |
| Part Number | Manufacturer |
|---|---|
| 1573943 PRIMARY | Air Transport Mfg Co (USA) |
| Reference | Meaning |
|---|---|
| 1573943 | C/1 Advisory reference — outside the item-of-supply concept Raytheon Company Div Rmd Strategic |
NSN 5999-01-045-1859 is a Delay Line, manufactured by Air Transport Mfg Co, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-045-1859 has 1 manufacturer part number on file: 1573943 (Air Transport Mfg Co).
Key specifications for 1573943: Signal Delay Method: ELECTROMECHANICAL; Section Delay Time: 41.850 MICROSECONDS MINIMUM SINGLE SECTION AND 42.150 MICROSECONDS MAXIMUM SINGLE SECTION US; Output Impedance Rating: 50.000 OHMS; Individual Section Quantity: 1. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5999-01-045-1859 has DEMIL Code D. 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.