The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-983-2781, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Bellofram Corporation. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-983-2781 |
| Primary Part Number | 58FMS |
| Item Name | Thermometer,indicating,capillary |
| FSC / FSG | 6685 / 66 — No Item Name Available |
| Manufacturer | Bellofram Corporation |
| Status | ACTIVE |
| Features Provided | ZERO ADJUSTMENT |
| Scale Measurement Range | -20.000 TO 240.000 DEG FAHRENHEIT |
| Material | STEEL METER CASE |
| Material | COPPER ALLOY BULB |
| Scale Type | CONCENTRIC DIAL |
| Flexible Tube Length | 72.000 INCHES NOMINAL IN |
| Bulb Type | FLEXIBLE CAPILLARY |
| Indicator Connection Method | FLEXIBLE TUBE |
| Mounting Facility Type and Quantity | 1 FLUSH AND 1 PANEL AND 3 HOLE |
| Mounting Bolt Circle Diameter | 4.313 INCHES NOMINAL IN |
| Dial Diameter | 3.500 INCHES NOMINAL IN |
| Case Type | DUSTPROOF AND VAPORPROOF |
| Actuating Medium | GAS |
| Scale Inscription/background Color | BLACK MARKING ON WHITE BACKGROUND |
| Active Portion Length | 10.250 INCHES NOMINAL IN |
| Unthreaded Mounting Hole Diameter | 0.219 INCHES NOMINAL IN |
| Bulb Overall Length | 11.000 INCHES NOMINAL IN |
| Scale Accuracy Rating | PORM 5 DEG |
| Bulb Quantity | 1 |
| Case Diameter | 4.860 INCHES NOMINAL IN |
| Active Portion Diameter | 0.625 INCHES NOMINAL IN |
| Pointer/pen Type and Quantity | 1 INDICATING SINGLE |
| Scale Smallest Increment | 5.0 DEG FAHRENHEIT |
| Bulb Connection Type | UNION |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 6685-00-983-2781 is a Thermometer,indicating,capillary, manufactured by Bellofram Corporation, classified under FSC 6685 (No Item Name Available). Status: active.
NSN 6685-00-983-2781 has 3 cross-referenced part numbers: 81828 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit), 58FMS (Desco Corp Marsh Bellofram Div), 58FMS (Bellofram Corporation).
There are 5 known substitutes for 6685-00-983-2781: 4510-00-451-2791, 3455-00-455-5446, 6685-00-542-0924 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 58FMS: Features Provided: ZERO ADJUSTMENT; Overall Width: 1.656 INCHES NOMINAL IN; Scale Measurement Range: -20.000 TO 240.000 DEG FAHRENHEIT; Material: STEEL METER CASE. 26 total characteristics are documented in the Federal Logistics Information System.