The Bowl,sediment, cataloged under National Stock Number 2940-01-156-8389, is classified within Federal Supply Class 2940 (Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Ross Operating Valve Co. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2940-01-156-8389 |
| Primary Part Number | 5111B4008 |
| Item Name | Bowl,sediment |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Ross Operating Valve Co |
| Status | ACTIVE |
| Hole Thread Size and Series/type Designator | 1/8-27 NPT |
| Hole Thread Direction | RIGHT-HAND |
| Material | PLASTIC |
| Hole Quantity | 1 |
| Closed End Hole | INCLUDED |
| Closed End Shape | CONCAVE |
| Furnished Items and Quantity | BOWL GUARD,1 |
| 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 |
|---|---|
| 5111B4008 PRIMARY | Ross Operating Valve Co (USA) |
| Reference | Meaning |
|---|---|
| 5111A4008 | 5/9 Secondary reference Ross Operating Valve Co |
NSN 2940-01-156-8389 is a Bowl,sediment, manufactured by Ross Operating Valve Co, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-156-8389 has 1 manufacturer part number on file: 5111B4008 (Ross Operating Valve Co).
1 possible match (shared part number, not a government interchangeability claim): 4810-01-201-2573. Verify interchangeability with system specifications before substitution.
Key specifications for 5111B4008: Hole Thread Size and Series/type Designator: 1/8-27 NPT; Hole Thread Direction: RIGHT-HAND; Material: PLASTIC; Hole Quantity: 1. 7 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.