The Waveguide Assembly, cataloged under National Stock Number 5985-00-545-4852, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5985-00-545-4852 |
| Primary Part Number | 2837003 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM ALL FLANGES IN |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.05 |
| Style Designator | OFFSET BEND TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 10.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.570 INCHES MINIMUM AND 1.610 INCHES MAXIMUM ALL FLANGES IN |
| Flange Connecting Hole Diameter | 0.167 INCHES MINIMUM AND 0.171 INCHES MAXIMUM ALL FLANGES SINGLE CONNECTION FACILITY IN |
| Waveguide Center to Center Distance | 0.500 INCHES NOMINAL IN |
| Flange Inside Width | 0.897 INCHES MINIMUM AND 0.903 INCHES MAXIMUM ALL FLANGES IN |
| Waveguide Length | 11.612 INCHES MINIMUM AND 11.638 INCHES MAXIMUM IN |
| Waveguide Outside Height | 0.496 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN |
| Waveguide Outside Width | 0.996 INCHES MINIMUM AND 1.004 INCHES MAXIMUM IN |
| Flange Depth | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM ALL FLANGES IN |
| Flange Outside Width | 2.070 INCHES MINIMUM AND 2.110 INCHES MAXIMUM ALL FLANGES IN |
| Insertion Loss in Decibels | 0.05 |
| Surface Treatment | OXIDE FILM SINGLE TUBING SEGMENT INSIDE SURFACES |
| Surface Treatment | PAINT SINGLE TUBING SEGMENT OUTSIDE SURFACES |
| Surface Treatment | OXIDE FILM ALL FLANGE INSIDE SURFACES |
| Surface Treatment | PAINT ALL FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY SINGLE TUBING SEGMENT |
| Material | ALUMINUM ALLOY ALL FLANGE |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY |
| Flange Style | CONTACT TYPE ALL FLANGES |
| 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 |
|---|---|
| 2837003 | Waveline Inc (USA) |
| 4050728 | Microwave Engineering Corporation (USA) |
| 2837003 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 2837003 | Microtech Inc Dba Microtech Inc (USA) |
| 2837003 | Shiloh Industries Inc (USA) |
| 4050728 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 4050728 | 5/9 Secondary reference Advanced Technical Materials, Inc. Dba a T M |
| 4050728 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 5985-00-545-4852 is a Waveguide Assembly, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-545-4852 has 6 manufacturer part numbers on file: 2837003 (Waveline Inc), 4050728 (Microwave Engineering Corporation), 2837003 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 2837003 (Microtech Inc Dba Microtech Inc), 2837003 (Shiloh Industries Inc) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 5340-01-205-7558. Verify interchangeability with system specifications before substitution.
Key specifications for 2837003: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM ALL FLANGES IN; Flange Quantity: 2; Voltage Standing Wave Ratio: 1.05. 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 5985-00-545-4852 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.