The Delay Line, cataloged under National Stock Number 5999-01-366-7966, 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 Data Delay Devices. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-366-7966 |
| Primary Part Number | DDU-Z678-1 |
| Item Name | Delay Line |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Data Delay Devices |
| Status | ACTIVE |
| Signal Delay Method | SOLID STATE |
| Section Delay Time | 75.000 NANOSECONDS NOMINAL SINGLE SECTION NS |
| Inclosure Type | HERMETICALLY SEALED |
| Body Style | RECTANGULAR |
| Body Width | 0.400 INCHES MAXIMUM IN |
| Individual Section Quantity | 1 |
| Delay Time Variation Method | TAPPED |
| Segment Delay Time | 25.000 NANOSECONDS NOMINAL SINGLE SECTION ALL SEGMENTS NS |
| Body Length | 0.800 INCHES MAXIMUM IN |
| Mounting Facility | WIRE LEAD TERMINAL(S) |
| Terminal Type and Quantity | 8 WIRE LEADS |
| Operating Temp Range | -55.0 TO 110.0 CELSIUS DEGC |
| Body Depth | 0.230 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | JN |
| Weight | 0.0200 lbs |
| Cube | 0.0001 cu ft |
| Part Number | Manufacturer |
|---|---|
| 91-38 | Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil (USA) |
| DDU-Z678-1 PRIMARY | Data Delay Devices (USA) |
| Reference | Meaning |
|---|---|
| 589R066H01 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5999-01-366-7966 is a Delay Line, manufactured by Data Delay Devices, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-366-7966 has 2 manufacturer part numbers on file: 91-38 (Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil), DDU-Z678-1 (Data Delay Devices).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-571-8515. Verify interchangeability with system specifications before substitution.
Key specifications for DDU-Z678-1: Signal Delay Method: SOLID STATE; Section Delay Time: 75.000 NANOSECONDS NOMINAL SINGLE SECTION NS; Inclosure Type: HERMETICALLY SEALED; Body Style: RECTANGULAR. 13 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.
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.