The Lining,friction, cataloged under National Stock Number 3040-01-421-0136, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-421-0136 |
| Primary Part Number | 1220C1157 |
| Item Name | Lining,friction |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Lining Style | RECTANGULAR BLOCK PLAIN |
| Width | 2.000 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC FRICTION LINING |
| Thickness | 0.500 INCHES NOMINAL IN |
| Hole Type and Quantity | 8 THRU-HOLE AND 8 COUNTERBORED |
| 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 |
|---|---|
| 1220C1157 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 1220C1157 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 3040-01-421-0136 is a Lining,friction, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-421-0136 has 1 manufacturer part number on file: 1220C1157 (Lockheed Martin Corporation Div Rms).
Key specifications for 1220C1157: Lining Style: RECTANGULAR BLOCK PLAIN; Overall Length: 9.000 INCHES NOMINAL IN; Special Features: MATERIAL PER MIL-R-6855, CLASS 1 GRADE 60, MOUNTING HOLES 0.230 IN. DIA THRU AND 0.500 IN. CBORE DIA., PARKING BRAKE PAD IN; Width: 2.000 INCHES NOMINAL IN. 5 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.