The Coupler,transmission Line, cataloged under National Stock Number 5985-01-105-0701, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 3 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-105-0701 |
| Primary Part Number | 277-0421-010 |
| Item Name | Coupler,transmission Line |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Radio Frequency Rating | 225.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM |
| Unit Type | TRANSMISSION LINE |
| Mounting Configuration | FOUR 0.105 IN. DIA MTG HOLES ON 1.437 IN. BY 0.375 IN. MTG CTR IN |
| 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 |
|---|---|
| QHF-2-.312G/21560 | Merrimac Industries, Inc (USA) |
| 277-0421-010 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| MPS388 | 5/9 Secondary reference U.S. Government activity |
| 1R0360-3 | 5/9 Secondary reference Anaren, Inc. Div Anaren Microwave Inc |
| QHF2-0-312G21560 | C/1 Advisory reference — outside the item-of-supply concept Merrimac Industries, Inc |
| QHF2-0-312GMOD | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| QHF2-0-312GM0D2 2 | C/1 Advisory reference — outside the item-of-supply concept Merrimac Industries, Inc |
NSN 5985-01-105-0701 is a Coupler,transmission Line, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-105-0701 has 2 manufacturer part numbers on file: QHF-2-.312G/21560 (Merrimac Industries, Inc), 277-0421-010 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 277-0421-010: Overall Height: 0.762 INCHES NOMINAL IN; Radio Frequency Rating: 225.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM; Overall Length: 1.625 INCHES NOMINAL IN; Overall Width: 0.134 INCHES NOMINAL IN. 3 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 5985-01-105-0701 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.