The Coil,radio Frequency, cataloged under National Stock Number 5950-00-648-5556, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Pax Mfg Corp Hammarlund Mfg Co Div. Government technical data includes 11 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. 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 | 5950-00-648-5556 |
| Primary Part Number | 31257-1 |
| Item Name | Coil,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Pax Mfg Corp Hammarlund Mfg Co Div |
| Status | ACTIVE |
| Inclosure Type | OPEN |
| Body Outside Diameter | 0.545 INCHES NOMINAL IN |
| Turn Quantity | 8-5/6 SINGLE COMPONENT SINGLE WINDING |
| Mounting Method | CLIP SINGLE GROUP |
| Adjustment Device Drive Type | SLOTTED SCREW SINGLE COMPONENT |
| Winding Conductor Size | 0.03196 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING IN |
| Coil Form Type | HOLLOW SINGLE COMPONENT |
| Body Length | 1.875 INCHES NOMINAL IN |
| Rating Method | WINDING TURNS SINGLE COMPONENT SINGLE WINDING |
| Reliability Indicator | NOT ESTABLISHED |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG |
| 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 |
|---|---|
| 31257-1 PRIMARY | Pax Mfg Corp Hammarlund Mfg Co Div (USA) |
NSN 5950-00-648-5556 is a Coil,radio Frequency, manufactured by Pax Mfg Corp Hammarlund Mfg Co Div, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-648-5556 has 1 manufacturer part number on file: 31257-1 (Pax Mfg Corp Hammarlund Mfg Co Div).
1 possible match (shared part number, not a government interchangeability claim): 5905-00-648-9356. Verify interchangeability with system specifications before substitution.
Key specifications for 31257-1: Inclosure Type: OPEN; Body Outside Diameter: 0.545 INCHES NOMINAL IN; Turn Quantity: 8-5/6 SINGLE COMPONENT SINGLE WINDING; Mounting Method: CLIP SINGLE GROUP. 11 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.