The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-376-2288, 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 Ashcroft Inc Dba Heise. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-376-2288 |
| Primary Part Number | 45-1377SS-02B-XPDTS-6000LB |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Scale Accuracy | 1/2 OF 1 FULL SCALE |
| Scale Name | PRESSURE |
| Actuation Type | BOURDON TUBE |
| Mounting Method | FLANGE |
| Scale Range | +0.0 TO 6000.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Scale Name for Which Pointer Is Designed | HYDRAULIC PRESSURE |
| Pointer Type | INDICATING |
| Scale Type | DIAL |
| Dial Size | 4 1/2 IN. DIAL IN |
| Connection Location | BACK, LOWER |
| Scale Length | 6.094 INCHES NOMINAL IN |
| Pointer Color | BLACK |
| Material | STEEL ACTUATING ELEMENT |
| Material | ALUMINUM CASE |
| Connection Size | 0.250 IN. NPT DIA. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 45-1377SS-02B-XPDTS-6000LB PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 68A4-C81-2 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 6685-01-376-2288 is a Gage,pressure,dial Indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-376-2288 has 1 manufacturer part number on file: 45-1377SS-02B-XPDTS-6000LB (Ashcroft Inc Dba Heise).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-400-4190. Verify interchangeability with system specifications before substitution.
Key specifications for 45-1377SS-02B-XPDTS-6000LB: Scale Accuracy: 1/2 OF 1 FULL SCALE; Scale Name: PRESSURE; Actuation Type: BOURDON TUBE; Mounting Method: FLANGE. 15 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.