The Filter,fluid, cataloged under National Stock Number 6540-01-144-5351, is classified within Federal Supply Class 6540 (Ophthalmic Instruments, Equipment, and Supplies) of the Medical, Dental, and Veterinary Equipment group. The manufacturer of record is Ciba Corning Diagnostics Corp a Joint Venture. Government technical data includes 27 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6540-01-144-5351 |
| Primary Part Number | 900153256 |
| Item Name | Filter,fluid |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Manufacturer | Ciba Corning Diagnostics Corp a Joint Venture |
| Status | ACTIVE |
| Filtering Media Design | SINTERED SINGLE FILTERING MEDIA RESPONSE |
| FSC Application Data | PHOTOMETER MODEL 435 W/DILUTOR AND COMPRESSOR W |
| Filtration Rating in Microns | 25.0 ABSOLUTE |
| First Intake Nominal Thread Size | 0.484 MILLIMETERS MM |
| First Intake Thread Series Designator | BSP.TR INT |
| Design Type | REUSABLE |
| Body Outside Diameter | 2.750 INCHES NOMINAL IN |
| Temp Rating | 50.0 CELSIUS MAXIMUM DEGC |
| First Intake Thread Direction | RIGHT-HAND |
| Body Height | 6.500 INCHES NOMINAL IN |
| Storage Type | CLOSED SHED OR UNHEATED WAREHOUSE |
| First Intake Connection Type | THREADED INTERNAL PIPE SIDE NEAR TOP |
| Style Designator | HIGH PRESSURE THREADED BODY |
| Operating Pressure | 145.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Filtering Element Quantity | 1 |
| Purchase Description Identification | 51404-900153256 |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Surface Treatment | PAINT BODY |
| Cubic Measure | 0.0340 CUBIC FEET |
| Media for Which Designed | AIR |
| Material | RUBBER BUNA N SEAL |
| Material | COPPER ALLOY FILTERING MEDIUM |
| Material | ALUMINUM ALLOY BODY |
| Material | PLASTIC FRAME |
| Material | PLASTIC POLYCARBONATE SEDIMENT BOWL |
| First Intake Thread Quantity Per Inch | 19 |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION SIDE NEAR TOP |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 900153256 PRIMARY | Ciba Corning Diagnostics Corp a Joint Venture (USA) |
| 00153256 | Siemens Medical Solutions Diagnostics Limited Div Diagnostics Division (GBR) |
| Reference | Meaning |
|---|---|
| 00153256 | 5/9 Secondary reference Bayer Plc (diagnostics Division) |
NSN 6540-01-144-5351 is a Filter,fluid, manufactured by Ciba Corning Diagnostics Corp a Joint Venture, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-144-5351 has 2 manufacturer part numbers on file: 900153256 (Ciba Corning Diagnostics Corp a Joint Venture), 00153256 (Siemens Medical Solutions Diagnostics Limited Div Diagnostics Division).
Key specifications for 900153256: Filtering Media Design: SINTERED SINGLE FILTERING MEDIA RESPONSE; FSC Application Data: PHOTOMETER MODEL 435 W/DILUTOR AND COMPRESSOR W; Filtration Rating in Microns: 25.0 ABSOLUTE; First Intake Nominal Thread Size: 0.484 MILLIMETERS MM. 27 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.