The Belt,v, cataloged under National Stock Number 3030-01-121-1878, is classified within Federal Supply Class 3030 (Belting, Drive Belts, Fan Belts, and Accessories) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Armstrong-Blum Mfg. Co.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3030-01-121-1878 |
| Primary Part Number | 8-1186 |
| Item Name | Belt,v |
| FSC / FSG | 3030 / 30 — Belting, Drive Belts, Fan Belts, and Accessories |
| Manufacturer | Armstrong-Blum Mfg. Co. |
| Status | ACTIVE |
| Strengthening Feature | SYNTHETIC CORD |
| Style Designator | MULTI-RIB BAND DRIVE |
| Section Quantity | 7 |
| Cross-Sectional Size | L |
| Environmental Protection | HEAT RESISTANT AND OIL RESISTANT |
| Nominal Width | 1.250 INCHES IN |
| Material | RUBBER SYNTHETIC AND FIBER SYNTHETIC AND FIBER AND RUBBER BODY |
| Performance Type | STANDARD CAPACITY |
| Nominal Pitch Length | 50.000 INCHES 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 |
|---|---|
| 8-1186 PRIMARY | Armstrong-Blum Mfg. Co. (USA) |
| 500L7 PRIMARY | Contitech Usa, Inc Dba Veyance Technologies (USA) |
| 500L7 | Emerson Electric Co Browning Mfg Div (USA) |
| Reference | Meaning |
|---|---|
| 396187 | 5/9 Secondary reference Medalist Industries Inc Peerless Saws Div |
| 500L7 | C/1 Advisory reference — outside the item-of-supply concept Carlisle Power Transmission Products Inc |
| 500L7 | 5/9 Secondary reference Goodyear Tire and Rubber Co the |
| 500L7 | 5/9 Secondary reference U.S. Government activity |
NSN 3030-01-121-1878 is a Belt,v, manufactured by Armstrong-Blum Mfg. Co., classified under FSC 3030, Belting, Drive Belts, Fan Belts, and Accessories. Status: active.
NSN 3030-01-121-1878 has 3 manufacturer part numbers on file: 8-1186 (Armstrong-Blum Mfg. Co.), 500L7 (Contitech Usa, Inc Dba Veyance Technologies), 500L7 (Emerson Electric Co Browning Mfg Div).
1 possible match (shared part number, not a government interchangeability claim): 8145-01-693-4969. Verify interchangeability with system specifications before substitution.
Key specifications for 8-1186: Strengthening Feature: SYNTHETIC CORD; Style Designator: MULTI-RIB BAND DRIVE; Section Quantity: 7; Cross-Sectional Size: L. 9 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.