The Isolator,radio Frequency Reflect, cataloged under National Stock Number 5985-00-787-6720, 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 Alliant Techsystems Operations Llc Div Defense Electronic Systems. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-787-6720 |
| Primary Part Number | D41C5 |
| Item Name | Isolator,radio Frequency Reflect |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Alliant Techsystems Operations Llc Div Defense Electronic Systems |
| Status | ACTIVE |
| FSC Application Data | FREQUENCY0CONVERTER-TRANSMITTERXRADAR,2AIRBORNE,0EXCEPT3FIRE CONTROLGQS1GUIDED2MISSILE |
| Document Type | MIL |
| Flange Quantity | 2 |
| Overall Diameter | 3.625 INCHES NOMINAL IN |
| Flange Type | CONTACT |
| Diameter | 3.650 INCHES NOMINAL IN |
| Flange Connecting Hole Diameter | 0.219 INCHES NOMINAL IN |
| Identification Designator | TYPE NO. UG-149A/U A |
| Frequency Range Rating | +3.950 TO 5.850 GIGAHERTZ |
| Flange Connecting Hole Spacing | 45 DEG APART ON 1.625 IN. RADIUS IN |
| Document Identification | MIL-F-3922 |
| Flange Connection Facility Quantity | 8 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5985-00-787-6720 is a Isolator,radio Frequency Reflect, manufactured by Alliant Techsystems Operations Llc Div Defense Electronic Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-787-6720 has 2 manufacturer part numbers on file: D41C5 (Lockheed Martin Corporation Div Rms - Mitchel Field), D41C5 (Alliant Techsystems Operations Llc Div Defense Electronic Systems).
Key specifications for D41C5: FSC Application Data: FREQUENCY0CONVERTER-TRANSMITTERXRADAR,2AIRBORNE,0EXCEPT3FIRE CONTROLGQS1GUIDED2MISSILE; Document Type: MIL; Flange Quantity: 2; Overall Diameter: 3.625 INCHES NOMINAL IN. 12 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 5985-00-787-6720 has DEMIL Code Q. 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.