The Insulator,bushing, cataloged under National Stock Number 5970-01-280-3306, 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 Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-280-3306 |
| Primary Part Number | 2638-21650-N171 |
| Item Name | Insulator,bushing |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware |
| Status | ACTIVE |
| Shank Height | 0.050 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Outside Diameter | 0.375 INCHES NOMINAL IN |
| Shank Outside Diameter | 0.216 INCHES NOMINAL IN |
| Inside Diameter | 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN |
| Material | PLASTIC POLYAMIDE NYLON 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 |
|---|---|
| 2638-21650-N171 PRIMARY | Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware (USA) |
| Reference | Meaning |
|---|---|
| 2638-21650-N171 | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
| 11443902-1 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 5970-01-280-3306 is a Insulator,bushing, manufactured by Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-280-3306 has 1 manufacturer part number on file: 2638-21650-N171 (Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware).
Key specifications for 2638-21650-N171: Overall Height: 0.080 INCHES NOMINAL IN; Shank Height: 0.050 INCHES NOMINAL IN; Style Designator: SHOULDER; Outside Diameter: 0.375 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.
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.