The Lining,friction, cataloged under National Stock Number 3950-01-199-1867, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. The manufacturer of record is Wheeling Brake Block Mfg Co. Government technical data includes 8 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3950-01-199-1867 |
| Primary Part Number | NA6504 |
| Item Name | Lining,friction |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Manufacturer | Wheeling Brake Block Mfg Co |
| Status | ACTIVE |
| Arc Length | 26.500 INCHES NOMINAL IN |
| Lining Style | SEGMENT PLAIN |
| Application Type | DRY |
| Attachment Method | BONDED |
| Width | 4.000 INCHES NOMINAL IN |
| Minor Radius | 24.375 INCHES NOMINAL IN |
| Material | STEEL FRICTION LINING |
| Thickness | 0.380 INCHES NOMINAL IN |
| 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 |
|---|---|
| NA6504 | Wheeling Brake Block Mfg Co (USA) |
| Reference | Meaning |
|---|---|
| NA604E | C/1 Advisory reference — outside the item-of-supply concept Wheeling Brake Block Mfg Co |
| 1214D1321 FIND 4 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
| 1214D1321 FIND 4 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
| 0351B0087-2 | 3/9 Design control — primary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
| 0351B0087-2 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
| NA6504E | C/1 Advisory reference — outside the item-of-supply concept Wheeling Brake Block Mfg Co |
NSN 3950-01-199-1867 is a Lining,friction, manufactured by Wheeling Brake Block Mfg Co, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
NSN 3950-01-199-1867 has 1 manufacturer part number on file: NA6504 (Wheeling Brake Block Mfg Co).
Key specifications for NA6504: Arc Length: 26.500 INCHES NOMINAL IN; Lining Style: SEGMENT PLAIN; Application Type: DRY; Attachment Method: BONDED. 8 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.