The Coupling,shaft,rigid, cataloged under National Stock Number 3010-01-195-1271, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Burke Products Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3010-01-195-1271 |
| Primary Part Number | BP1921 |
| Item Name | Coupling,shaft,rigid |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Burke Products Inc |
| Status | ACTIVE |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Style Designator | PLAIN SLEEVE |
| Bore Shape | STRAIGHT FIRST END |
| Body Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| BP1921 | Burke Products Inc (USA) |
| EV-4012 | Energy Vent Inc (USA) |
| Reference | Meaning |
|---|---|
| A11591 | 3/9 Design control — primary reference L3 Technologies, Inc. |
| A-11591 | 5/9 Secondary reference Krdc Inc Dba Martin-Palmer Tool & Die Co Div |
| 3330264PC64 | 5/9 Secondary reference L3 Technologies, Inc. |
NSN 3010-01-195-1271 is a Coupling,shaft,rigid, manufactured by Burke Products Inc, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-195-1271 has 2 manufacturer part numbers on file: BP1921 (Burke Products Inc), EV-4012 (Energy Vent Inc).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-319-1862. Verify interchangeability with system specifications before substitution.
Key specifications for BP1921: Overall Diameter: 0.375 INCHES NOMINAL IN; Style Designator: PLAIN SLEEVE; Overall Length: 0.625 INCHES NOMINAL IN; Bore Shape: STRAIGHT FIRST END. 4 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.