The Coupler,directional, cataloged under National Stock Number 5985-00-992-9551, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple. Government technical data includes 6 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-992-9551 |
| Primary Part Number | C100-072-001 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| Status | ACTIVE |
| Terminal Fitting Controlling Agency | A.S.E.S.A.; MANSON LABS; MANSON LABS |
| Usage Design | MAIN LINE AND SECONDARY LINE TERMINAL FITTING |
| Identifying Number | TERMINAL FITTING UG-21/U; 100-072-001-3; 100-072-001-2 |
| Design Type | UNIDIRECTIONAL |
| Radio Frequency Rating | 42.0 MEGAHERTZ NOMINAL |
| Unit Type | TRANSMISSION LINE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 100-072-001 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| C100-072-001 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
NSN 5985-00-992-9551 is a Coupler,directional, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-992-9551 has 2 manufacturer part numbers on file: 100-072-001 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), C100-072-001 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-125-6253, 5950-01-411-0946. Verify interchangeability with system specifications before substitution.
Key specifications for C100-072-001: Terminal Fitting Controlling Agency: A.S.E.S.A.; MANSON LABS; MANSON LABS; Usage Design: MAIN LINE AND SECONDARY LINE TERMINAL FITTING; Identifying Number: TERMINAL FITTING UG-21/U; 100-072-001-3; 100-072-001-2; Design Type: UNIDIRECTIONAL. 6 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.