The Adapter,waveguide, cataloged under National Stock Number 5985-00-513-2764, 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 Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-513-2764 |
| Primary Part Number | 2131857-2 |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.400 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Quantity | 1 |
| Voltage Standing Wave Ratio | 1.15 |
| Adapter Overall Width | 1.625 INCHES NOMINAL IN |
| Style Designator | WAVEGUIDE TO COAXIAL |
| Flange Inside Diameter | 1.015 INCHES NOMINAL SINGLE FLANGE IN |
| Waveguide Inside Width | 0.500 INCHES NOMINAL IN |
| Connector End Design | FEMALE |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.625 INCHES NOMINAL SINGLE FLANGE IN |
| Adapter Overall Height | 0.720 INCHES NOMINAL IN |
| Adapter Length | 1.280 INCHES NOMINAL IN |
| Flange Inside Width | 0.900 INCHES NOMINAL SINGLE FLANGE IN |
| Thread Direction | RIGHT-HAND SINGLE FLANGE SINGLE CONNECTION FACILITY |
| Nominal Thread Size | 0.164 INCHES SINGLE FLANGE SINGLE CONNECTION FACILITY IN |
| Waveguide Outside Height | 0.900 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.000 INCHES NOMINAL IN |
| Flange Depth | 0.438 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Outside Width | 1.625 INCHES NOMINAL SINGLE FLANGE IN |
| Waveguide Inside Height | 0.400 INCHES NOMINAL IN |
| Adapter Height | 1.625 INCHES NOMINAL IN |
| Thread Class | 2B SINGLE FLANGE SINGLE CONNECTION FACILITY |
| Material | ALUMINUM SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) SINGLE FLANGE SINGLE CONNECTION FACILITY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE FLANGE SINGLE CONNECTION FACILITY |
| Flange Style | CHOKE TYPE SINGLE FLANGE |
| Coaxial Connector Series Designation | SMA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2131857-2 PRIMARY | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA) |
| 60980P2 | Waveline Inc (USA) |
| AR3087-2 | Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc (USA) |
| Reference | Meaning |
|---|---|
| 20186AJM0D | 5/9 Secondary reference U.S. Government activity |
| 2131857-2 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
| 2131857-2 | 5/1 Secondary reference U.S. Government activity |
NSN 5985-00-513-2764 is a Adapter,waveguide, manufactured by Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-513-2764 has 3 manufacturer part numbers on file: 2131857-2 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div), 60980P2 (Waveline Inc), AR3087-2 (Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc).
Key specifications for 2131857-2: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.400 INCHES NOMINAL SINGLE FLANGE IN; Flange Quantity: 1; Voltage Standing Wave Ratio: 1.15. 28 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 5985-00-513-2764 has DEMIL Code B. 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.