The Insulator,bushing, cataloged under National Stock Number 5970-00-192-7439, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Birnbach Co Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5970-00-192-7439 |
| Primary Part Number | 6549C |
| Item Name | Insulator,bushing |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Birnbach Co Inc |
| Status | ACTIVE |
| Identification Code Color | WHITE |
| Shank Height | 0.312 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Outside Diameter | 0.399 INCHES NOMINAL IN |
| Shank Outside Diameter | 0.260 INCHES NOMINAL IN |
| Inside Diameter | 0.200 INCHES NOMINAL IN |
| Material | PLASTIC OVERALL |
| 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 |
|---|---|
| 6549C PRIMARY | Birnbach Co Inc (USA) |
| Reference | Meaning |
|---|---|
| A0390-0007MS | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 103306ADX | 5/9 Secondary reference Airdale Express Llc Div Airdale Express |
| 103306 | 5/9 Secondary reference Federal Screw Products, Inc. |
| A0390-0007MS | 7/2 Vendor item drawing reference Keysight Technologies Inc |
| A0390-0007MS | 7/9 Vendor item drawing reference Keysight Technologies, Inc. |
NSN 5970-00-192-7439 is a Insulator,bushing, manufactured by Birnbach Co Inc, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-192-7439 has 1 manufacturer part number on file: 6549C (Birnbach Co Inc).
5 possible matches (shared part number, not a government interchangeability claim): 6610-01-007-4252, 5999-01-100-4935, 5975-01-225-7746. Verify interchangeability with system specifications before substitution.
Key specifications for 6549C: Overall Height: 0.375 INCHES NOMINAL IN; Identification Code Color: WHITE; Shank Height: 0.312 INCHES NOMINAL IN; Style Designator: SHOULDER. 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.