# NSN 5985-01-274-6602: Waveguide Assembly

NSN 5985-01-274-6602 (also written 5985012746602; NIIN 01-274-6602) is a waveguide assembly in Federal Supply Class 5985, Antennas, Waveguides, and Related Equipment. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5985-01-274-6602 (5985012746602)
- NIIN: 01-274-6602 (012746602)
- Item name: WAVEGUIDE ASSEMBLY
- Federal Supply Class: [FSC 5985 Antennas, Waveguides, and Related Equipment](https://nsnexplorer.com/fsc/5985/)
- Federal Supply Group: [FSG 59](https://nsnexplorer.com/group/59/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-11-04)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| AHRV | TUBING WALL CONSTRUCTION STYLE | — |
| AHSF | FLANGE QUANTITY | 2 |
| AHSX | FLANGE INSIDE WIDTH | ALL FLANGES INCHES NOMINAL 2.840 |
| AHSY | FLANGE INSIDE HEIGHT | ALL FLANGES INCHES NOMINAL 0.670 |
| AHSZ | FLANGE OUTSIDE WIDTH | ALL FLANGES INCHES NOMINAL 3.750 |
| AHTA | FLANGE OUTSIDE HEIGHT | ALL FLANGES INCHES NOMINAL 2.330 |
| AHTD | FLANGE DEPTH | ALL FLANGES INCHES NOMINAL 0.310 |
| AHTN | FLANGE CONNECTING HOLE DIAMETER | ALL FLANGES ALL CONNECTION FACILITIES INCHES NOMINAL 0.255 |
| AHTW | VOLTAGE STANDING WAVE RATIO | 1.30 |
| AHTX | INSERTION LOSS IN DECIBELS | 0.25 |
| CQHN | WAVEGUIDE OUTSIDE WIDTH | INCHES MAXIMUM 3.720 |
| CRFH | WAVEGUIDE INSIDE WIDTH | INCHES NOMINAL 2.840 |
| CRLB | WAVEGUIDE INSIDE HEIGHT | INCHES NOMINAL 0.670 |
| CSFC | WAVEGUIDE OUTSIDE HEIGHT | INCHES MAXIMUM 2.110 |
| CSQT | FLANGE CONNECTING FACILITY AND QUANTITY | ALL FLANGES ALL CONNECTION FACILITIES UNTHREADED HOLE(S) 8 |
| CTCJ | FLANGE STYLE | — |
| CTFD | WAVEGUIDE LENGTH | INCHES NOMINAL 13.000 |
| FLEX | FLEXIBILITY | SINGLE TUBING SEGMENT RIGID |
| MATT | MATERIAL | SINGLE TUBING SEGMENT AND FLANGE ALUMINUM |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 3258543 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 433544 | 66544 | FRONTGRADE TECHNOLOGIES INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 433544 | 80006 | LITTON SYSTEMS INC AIRTRON DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-18 | [SPE7M126P9661](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5985012746602) | WAVEGUIDE ASSEMBLY | FRONTGRADE TECHNOLOGIES INC. | $13,810.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5985012746602&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5985012746602
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/5985-01-274-6602/
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