The Indicator,sight,liquid, cataloged under National Stock Number 6680-00-531-2541, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Bijur Lubricating Corp. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-531-2541 |
| Primary Part Number | B4904 |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — No Item Name Available |
| Manufacturer | Bijur Lubricating Corp |
| Status | ACTIVE |
| End Connection Type | UNABLE TO DECODE |
| Style Designator | TANK PATTERN, FLANGED |
| Furnished Data | LIQUID LEVEL |
| Material | COPPER ALLOY |
| Criticality Code Justification | FEAT |
| Surface Treatment | CHROMIUM |
| Flange Outside Diameter | 1.250 INCHES NOMINAL IN |
| Sight Diameter | 1.000 INCHES NOMINAL IN |
| Media for Which Designed | ANY ACCEPTABLE |
| Features Provided | REFLECTOR |
| Data Furnishing Method | CLEAR WINDOW |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 575-2601-1443725REVAPC25 | Naval Ship Systems Command (USA) |
| 578-2601-1572945REVAPC25 | Naval Ship Systems Command (USA) |
| 7861-24REVAPC25 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| B4904 PRIMARY | Bijur Lubricating Corp (USA) |
| 578-6505-1573035REVAPC40 | Naval Ship Systems Command (USA) |
| 571-2601-1302157REVAPC25 | Naval Ship Systems Command (USA) |
| 3761-20REVAPC25 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 4261-20REVAPC25 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 4261-17REVAPC25 | Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (USA) |
| 7863-03REVAPC40 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 571-2601-1302083REVAPC25 | Naval Ship Systems Command (USA) |
| 4261-20REVAPC25 | Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (USA) |
| 4263-21REVAPC23 | Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (USA) |
| 4261-17REVAPC25 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 576-2601-1505312REVAPC25 | Naval Ship Systems Command (USA) |
| 576-2601-1505315REVAPC25 | Naval Ship Systems Command (USA) |
| 576-6505-1405403REVAPC23 | Naval Ship Systems Command (USA) |
| 4263-21REVAPC23 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 3661-21REVAPC25 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 3661-27REVAPC25 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
NSN 6680-00-531-2541 is a Indicator,sight,liquid, manufactured by Bijur Lubricating Corp, classified under FSC 6680 (No Item Name Available). Status: active.
NSN 6680-00-531-2541 has 20 cross-referenced part numbers: 575-2601-1443725REVAPC25 (Naval Ship Systems Command), 578-2601-1572945REVAPC25 (Naval Ship Systems Command), 7861-24REVAPC25 (Electric Boat Corporation Div General Dynamics Electric Boat), B4904 (Bijur Lubricating Corp), 578-6505-1573035REVAPC40 (Naval Ship Systems Command) and 15 more.
There are 2 known substitutes for 6680-00-531-2541: 6210-00-055-5659, 2995-01-540-1787. Verify interchangeability with system specifications before substitution.
Key specifications for B4904: End Connection Type: UNABLE TO DECODE; Style Designator: TANK PATTERN, FLANGED; Furnished Data: LIQUID LEVEL; Overall Height: 0.344 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.