The Transmitter,pressure, cataloged under National Stock Number 6685-01-421-5870, 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 Kulite Semiconductor Products Inc. Government technical data includes 15 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-421-5870 |
| Primary Part Number | APTE-260-4000G |
| Item Name | Transmitter,pressure |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Kulite Semiconductor Products Inc |
| Status | ACTIVE |
| Actuation Method | PRESSURE SENSING ELEMENT |
| Contact Type | PIN |
| Current Type | DC |
| Mechanical Connection Quantity | 1 |
| Electrical Connection Quantity | 1 |
| Overall Diameter | 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN |
| Electrical Connection Identifying Number | MS3143HS10L-39 TO MATE WITH MS3459KS10SL-3S |
| Mounting Method | EXTERNAL STRAIGHT THREAD CONNECTION |
| Mechanical Connection Type | EXTERNAL THREAD |
| Reference Data and Literature | KULITE DRAWING APTE-260-1000-4 AND BOEING DWG 17B7N9001 |
| Mechanical Connection Size | 7/16-20UNJF-AS PER MS33656E4 |
| Contact Quantity | 3 |
| Functional Description | MONITORS THE PRESSURE OF GASSEOUS NITROGEN IN THE OBIGGS |
| Voltage Rating | 24.0 VOLTS MINIMUM AND 32.0 VOLTS MAXIMUM INPUT |
| Measurement Range | +0.0 TO 4000.0 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| 41SG627-3 | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA) |
| APTE-260-4000G PRIMARY | Kulite Semiconductor Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 17B7N9001-503 | 7/2 Vendor item drawing reference U.S. Government activity |
| 41SG627-2 | 5/9 Secondary reference Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution |
| 71660-764-178 | 5/9 Secondary reference U.S. Government activity |
| 17B7N9001-501 | 5/9 Secondary reference U.S. Government activity |
NSN 6685-01-421-5870 is a Transmitter,pressure, manufactured by Kulite Semiconductor Products Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-421-5870 has 2 manufacturer part numbers on file: 41SG627-3 (Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution), APTE-260-4000G (Kulite Semiconductor Products Inc).
Key specifications for APTE-260-4000G: Actuation Method: PRESSURE SENSING ELEMENT; Contact Type: PIN; Current Type: DC; Mechanical Connection Quantity: 1. 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.