The Compensator,liquid Quantity Gage, cataloged under National Stock Number 6680-00-581-2697, 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 Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division. Government technical data includes 12 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-581-2697 |
| Primary Part Number | 021-135-008 |
| Item Name | Compensator,liquid Quantity Gage |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division |
| Status | ACTIVE |
| Contact Type | PIN |
| Electrical Connection Quantity | 1 |
| Overall Diameter | 2.317 INCHES NOMINAL IN |
| Electrical Connection Identifying Number | PART NO. 443417-1 |
| Connection Lead Length | 20.000 INCHES NOMINAL IN |
| Mounting Method | BRACKET(S) |
| Connection with Lead | PROVIDED |
| Reference Data and Literature | T.O. 1C-135(K)A-4 FIG 1732 |
| Contact Quantity | 8 |
| Rated Air Capacitance in Picofarads | 331.4 |
| Electrical Connection Controlling Agency | MINNEAPOLIS HONEYWELL REGULATOR CO |
| Shielded Connection Lead | PROVIDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 021-135-008 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division (USA) |
| FG150J8 PRIMARY | Firstmark Aerospace Corp (USA) |
| Reference | Meaning |
|---|---|
| 021-135-008 | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
| 10-2426-28 | 5/9 Secondary reference U.S. Government activity |
| FG150J8 | 5/9 Secondary reference U.S. Government activity |
| 10-2426-28 | 7/2 Vendor item drawing reference U.S. Government activity |
| FG150J8 | 5/9 Secondary reference U.S. Government activity |
NSN 6680-00-581-2697 is a Compensator,liquid Quantity Gage, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-581-2697 has 2 manufacturer part numbers on file: 021-135-008 (Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division), FG150J8 (Firstmark Aerospace Corp).
Key specifications for 021-135-008: Contact Type: PIN; Electrical Connection Quantity: 1; Overall Diameter: 2.317 INCHES NOMINAL IN; Electrical Connection Identifying Number: PART NO. 443417-1. 12 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.
NSN 6680-00-581-2697 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.