The Counter,reciprocating, cataloged under National Stock Number 6680-00-273-8741, 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 Naval Sea Systems Command. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-273-8741 |
| Primary Part Number | SK99540PC1 |
| Item Name | Counter,reciprocating |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Numeral Display Method | DRUM |
| Register Quantity | 1 |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Mounting Arrangement Style | FOUR POSITION SQUARE/RECTANGLE |
| Shaft Diameter | 0.156 INCHES NOMINAL IN |
| Register Function | UNABLE TO DECODE |
| Figure Quantity Per Register | UNABLE TO DECODE |
| Style Designator | SQUARE/RECTANGULAR CASED |
| Longest Vertical Distance Between Mounting Centers | 1.203 INCHES NOMINAL IN |
| Actuating Device Location | RIGHT SIDE SINGLE REGISTER SINGLE TIER |
| Figure Height | UNABLE TO DECODE |
| Shaft Length | 0.438 INCHES NOMINAL IN |
| Maximum Count Rate | UNABLE TO DECODE |
| Minimum Angle Throw in Deg Per Count | UNABLE TO DECODE |
| Color | WHITE SECOND TEMP COEFFICIENT |
| Color | BLACK THIRD TEMP COEFFICIENT |
| Mounting Type for Which Designed | UNABLE TO DECODE |
| Register Reset Method | UNABLE TO DECODE |
| Longest Horizontal Distance Between Mounting Centers | 0.625 INCHES NOMINAL 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 |
|---|---|
| 727244-008 | Dynapar Corp Div Specialty Product Technologies (USA) |
| SK99540PC1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| SK99540PC1 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| DG112244 | 5/9 Secondary reference Dynapar Corp Div Specialty Product Technologies |
NSN 6680-00-273-8741 is a Counter,reciprocating, manufactured by Naval Sea Systems Command, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-273-8741 has 2 manufacturer part numbers on file: 727244-008 (Dynapar Corp Div Specialty Product Technologies), SK99540PC1 (Naval Sea Systems Command).
Key specifications for SK99540PC1: Numeral Display Method: DRUM; Register Quantity: 1; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Overall Height: 1.297 INCHES NOMINAL IN. 19 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.