The Line Section,radio Frequency Tra, cataloged under National Stock Number 5985-01-177-9140, 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 Rotary and Mission Systems. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-177-9140 |
| Primary Part Number | 6135499-1 |
| Item Name | Line Section,radio Frequency Tra |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Overall Diameter | 2.250 INCHES NOMINAL IN |
| Material Document and Classification | QQ-B-626, ALLOY 360, 1/2H FED SPEC SINGLE MATERIAL RESPONSE |
| Impedance Rating in Ohms | 50.0 NOMINAL |
| Frequency Rating | 0.9 GIGAHERTZ MINIMUM AND 1.3 GIGAHERTZ MAXIMUM |
| Material | COPPER ALLOY 360 |
| 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 |
|---|---|
| 6135499-1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| 220301 | 5/2 Secondary reference U.S. Government activity |
| 84985-101 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-177-9140 is a Line Section,radio Frequency Tra, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-177-9140 has 1 manufacturer part number on file: 6135499-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
4 possible matches (shared part number, not a government interchangeability claim): 5365-01-295-4735, 5315-01-356-2966, 5360-01-490-5798. Verify interchangeability with system specifications before substitution.
Key specifications for 6135499-1: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Overall Diameter: 2.250 INCHES NOMINAL IN; Material Document and Classification: QQ-B-626, ALLOY 360, 1/2H FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 3.125 INCHES NOMINAL IN. 6 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 5985-01-177-9140 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.