The Meter,flow Rate Indicating, cataloged under National Stock Number 6680-01-554-3961, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-554-3961 |
| Primary Part Number | 4872B-G503 |
| Item Name | Meter,flow Rate Indicating |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Howell Laboratories Inc Dba Howell Laboratories Inc |
| Status | ACTIVE |
| Scale Quantity | 1 |
| Design Type | GLASS |
| Material | GLASS TUBE |
| Metering Tube Quantity | 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 |
|---|---|
| 4872 REV D / PN-4875B-G503 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| 4870 ITEM 18 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| 4872B-G503 PRIMARY | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 1358E1B2FA1A1A | 5/9 Secondary reference U.S. Government activity |
| 1358E1B2FA1A1A | C/1 Advisory reference — outside the item-of-supply concept Brooks Instrument Llc |
NSN 6680-01-554-3961 is a Meter,flow Rate Indicating, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-554-3961 has 3 manufacturer part numbers on file: 4872 REV D / PN-4875B-G503 (Howell Laboratories Inc Dba Howell Laboratories Inc), 4870 ITEM 18 (Howell Laboratories Inc Dba Howell Laboratories Inc), 4872B-G503 (Howell Laboratories Inc Dba Howell Laboratories Inc).
Key specifications for 4872B-G503: Scale Quantity: 1; Design Type: GLASS; Overall Length: 8.438 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: (INAVY) AIR FLOWMETER. 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.