The Line Section,radio Frequency Tra, cataloged under National Stock Number 5985-01-336-6651, 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 Lockheed Martin Corporation Div Rms. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-336-6651 |
| Primary Part Number | 77C721316P004 |
| Item Name | Line Section,radio Frequency Tra |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIP. |
| Overall Diameter | 5.188 INCHES NOMINAL IN |
| Precious Material | SILVER |
| Impedance Rating in Ohms | 50.0 NOMINAL |
| Precious Material and Location | INTERNAL SURFACES SILVER |
| Frequency Rating | 5.0 MEGAHERTZ MINIMUM AND 30.0 MEGAHERTZ MAXIMUM |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 77C721316P004 | Mega Industries Inc Mega Microwave Div (USA) |
| 77C721316P004 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 15881 | 5/9 Secondary reference Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies |
| 77C721316P004 | 5/2 Secondary reference U.S. Government activity |
NSN 5985-01-336-6651 is a Line Section,radio Frequency Tra, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-336-6651 has 2 manufacturer part numbers on file: 77C721316P004 (Mega Industries Inc Mega Microwave Div), 77C721316P004 (Lockheed Martin Corporation Div Rms).
1 possible match (shared part number, not a government interchangeability claim): 8145-01-558-6701. Verify interchangeability with system specifications before substitution.
Key specifications for 77C721316P004: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIP.; Overall Diameter: 5.188 INCHES NOMINAL IN; Precious Material: SILVER; Overall Length: 60.430 INCHES MINIMUM AND 60.830 INCHES MAXIMUM IN. 7 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.
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.