The Waveguide Assembly, cataloged under National Stock Number 5985-01-005-7601, 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 Microwave Engineering Corporation. Government technical data includes 30 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-005-7601 |
| Primary Part Number | FG090ACCA10 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENTSEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.396 INCHES MINIMUM AND 0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM FIRST FLANGE0.404 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Inside Height | 0.503 INCHES MINIMUM AND 0.503 INCHES MINIMUM AND 0.506 INCHES MAXIMUM SECOND FLANGE0.506 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Quantity | 22 |
| Style Designator | STRAIGHT TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.896 INCHES MINIMUM AND 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM0.904 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULARINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.610 INCHES MINIMUM AND 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM SECOND FLANGE1.640 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Outside Height | 1.610 INCHES MINIMUM AND 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM FIRST FLANGE1.640 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Connecting Hole Diameter | 0.169 INCHES MINIMUM AND 0.169 INCHES MINIMUM AND 0.172 INCHES MAXIMUM SECOND FLANGE ALL CONNECTION FACILITIES0.172 INCHES MAXIMUM SECOND FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 0.896 INCHES MINIMUM AND 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM FIRST FLANGE0.904 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Inside Width | 1.003 INCHES MINIMUM AND 1.003 INCHES MINIMUM AND 1.006 INCHES MAXIMUM SECOND FLANGE1.006 INCHES MAXIMUM SECOND FLANGE IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIESRIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES |
| Waveguide Length | 9.970 INCHES MINIMUM AND 10.030 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.164 INCHES FIRST FLANGE ALL CONNECTION FACILITIES0.164 INCHES FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Outside Height | 0.496 INCHES MINIMUM AND 0.496 INCHES MINIMUM AND 0.504 INCHES MAXIMUM0.504 INCHES MAXIMUM IN |
| Waveguide Outside Width | 0.996 INCHES MINIMUM AND 0.996 INCHES MINIMUM AND 1.004 INCHES MAXIMUM1.004 INCHES MAXIMUM IN |
| Flange Depth | 0.423 INCHES MINIMUM AND 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM SECOND FLANGE0.453 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Depth | 0.423 INCHES MINIMUM AND 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM FIRST FLANGE0.453 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Outside Width | 1.610 INCHES MINIMUM AND 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM SECOND FLANGE1.640 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Outside Width | 1.610 INCHES MINIMUM AND 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM FIRST FLANGE1.640 INCHES MAXIMUM FIRST FLANGE IN |
| Tubing Twist Type | TWISTABLE SINGLE TUBING SEGMENTTWISTABLE SINGLE TUBING SEGMENT |
| Surface Treatment | CHROMATE ALL FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 0.396 INCHES MINIMUM AND 0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM0.404 INCHES MAXIMUM IN |
| Thread Class | 2B FIRST FLANGE ALL CONNECTION FACILITIES2B FIRST FLANGE ALL CONNECTION FACILITIES |
| Material | COPPER ALLOY ALL TUBING SEGMENT AND FLANGE |
| Material | PLASTIC SINGLE TUBING JACKET |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) FIRST FLANGE ALL CONNECTION FACILITIES4 THREADED HOLE(S) FIRST FLANGE ALL CONNECTION FACILITIES |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) SECOND FLANGE ALL CONNECTION FACILITIES4 UNTHREADED HOLE(S) SECOND FLANGE ALL CONNECTION FACILITIES |
| 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 |
|---|---|
| FG090ACCA10 PRIMARY | Microwave Engineering Corporation (USA) |
| FG090ACCA10 | Frontgrade Technologies Inc. (USA) |
| 2132881-2 | Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA) |
| 218785 | Microtech Inc Dba Microtech Inc (USA) |
| MTP90-504-N-10A | Microtech Inc Dba Microtech Inc (USA) |
| 2132881-2 PRIMARY | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA) |
| Reference | Meaning |
|---|---|
| FG090ACCA10 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-005-7601 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-005-7601 has 6 manufacturer part numbers on file: FG090ACCA10 (Microwave Engineering Corporation), FG090ACCA10 (Frontgrade Technologies Inc.), 2132881-2 (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems), 218785 (Microtech Inc Dba Microtech Inc), MTP90-504-N-10A (Microtech Inc Dba Microtech Inc) and 1 more.
2 possible matches (shared part number, not a government interchangeability claim): 2520-01-334-1638, 5998-01-571-4542. Verify interchangeability with system specifications before substitution.
Key specifications for FG090ACCA10: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENTSEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.396 INCHES MINIMUM AND 0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM FIRST FLANGE0.404 INCHES MAXIMUM FIRST FLANGE IN; Flange Inside Height: 0.503 INCHES MINIMUM AND 0.503 INCHES MINIMUM AND 0.506 INCHES MAXIMUM SECOND FLANGE0.506 INCHES MAXIMUM SECOND FLANGE IN; Flange Quantity: 22. 30 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 5985-01-005-7601 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.