The Coupler,directional, cataloged under National Stock Number 5985-00-581-5270, 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 Raytheon Company Dba Raytheon Co. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-581-5270 |
| Primary Part Number | N221529-1 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Terminal Fitting Controlling Agency | MIL |
| Usage Design | SECONDARY LINE TERMINAL FITTING |
| Power Loss in Decibels | 40.0 |
| Identifying Number | TERMINAL FITTING TYPE N |
| Design Type | UNIDIRECTIONAL |
| Radio Frequency Rating | 1.25 GIGAHERTZ MINIMUM AND 1.35 GIGAHERTZ MAXIMUM |
| Unit Type | WAVEGUIDE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 27933 | Telephonics Corp/prd Instruments (USA) |
| N221529-1 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| BP903 | 5/9 Secondary reference Raytheon Company Dba Raytheon Co |
| 27933 | 5/9 Secondary reference Peraton Inc |
| CU649FPS20A | 5/2 Secondary reference U.S. Government activity |
NSN 5985-00-581-5270 is a Coupler,directional, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-581-5270 has 2 manufacturer part numbers on file: 27933 (Telephonics Corp/prd Instruments), N221529-1 (Raytheon Company Dba Raytheon Co).
3 possible matches (shared part number, not a government interchangeability claim): 3040-01-262-2382, 3110-01-270-7173, 3120-01-358-9564. Verify interchangeability with system specifications before substitution.
Key specifications for N221529-1: Overall Height: 9.000 INCHES NOMINAL IN; Terminal Fitting Controlling Agency: MIL; Usage Design: SECONDARY LINE TERMINAL FITTING; Power Loss in Decibels: 40.0. 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 5985-00-581-5270 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.