The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-515-3478, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 28 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through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 6685-00-515-3478 |
| Primary Part Number | 7954512 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | CANCELLED |
| Scale Accuracy | 4 PCT ENTIRE RANGE |
| Scale Name | PRESSURE |
| Overall Diameter | 2.328 INCHES MAXIMUM IN |
| Actuation Type | SINGLE BOURDON TUBE |
| Mounting Method | BRACKET(S) AND FLUSH PANEL AND STUD(S) |
| Scale Inscription/background Color | WHITE FIGURES ON BLACK BACKGROUND |
| Scale Smallest Increment | 30.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 120.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Stud Location | BACK |
| Illuminative Method | INCANDESCENT LAMP |
| Stud Quantity | 2 |
| Pointer Type | INDICATING |
| Adjustability | NONADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 1-15/16 IN. DIA IN |
| Graduation Unit | 30.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK |
| Pointer Color | WHITE |
| Surface Treatment | CADMIUM CASE |
| Unable to Decode | UNABLE TO DECODE |
| Material | STEEL CASE |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | BRONZE ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Bezel Type | SLIPS-ON |
| Connection Size | 0.125 IN. NPT IN |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7954512 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 13207E2943FN6 | 5/1 Secondary reference U.S. Government activity |
| ES508A | 5/9 Secondary reference Stewart-Warner Corporation |
| 7954512 | 5/9 Secondary reference Stewart-Warner Corporation |
| 10500706 | 5/1 Secondary reference General Dynamics Land Systems Canadacorp |
| LA330-16 | 5/9 Secondary reference Pettibone Llc |
| 13207E6490 | 5/1 Secondary reference U.S. Government activity |
| 6685005153478 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 508A | 5/9 Secondary reference Stewart-Warner Corporation |
| 570N1 | 5/9 Secondary reference Diamond Reo Truck Co |
| TIP00217-22APR70 | 5/1 Secondary reference U.S. Government activity |
| 1508002 | 5/9 Secondary reference General Motors Corp |
| 1508002 | 5/9 Secondary reference General Motors Llc Dba General Motors |
NSN 6685-00-515-3478 is a Gage,pressure,dial Indicating, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: cancelled.
NSN 6685-00-515-3478 has 1 manufacturer part number on file: 7954512 (U S Army Tank Automotive Command Amsta-Im-Mm).
4 possible matches (shared part number, not a government interchangeability claim): 6625-01-111-3425, 3130-01-176-8143, 5365-01-191-7100. Verify interchangeability with system specifications before substitution.
Key specifications for 7954512: Scale Accuracy: 4 PCT ENTIRE RANGE; Scale Name: PRESSURE; Overall Diameter: 2.328 INCHES MAXIMUM IN; Actuation Type: SINGLE BOURDON TUBE. 28 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 6685-00-515-3478 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.