The Frame,indicator,sight,liquidliqu, cataloged under National Stock Number 6680-01-381-8031, 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. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6680-01-381-8031 |
| Item Name | Frame,indicator,sight,liquidliqu |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Status | ACTIVE |
| General Characteristics Item Description | IRON FRAME FOR SIGHT GLASS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 3206-57T3-4709 PIECE 242 | D/9 Drawing number reference only M-D Pneumatics Inc |
| 23501 | 3/9 Design control — primary reference M-D Pneumatics Inc |
NSN 6680-01-381-8031 is a Frame,indicator,sight,liquidliqu, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5895-01-575-3284. Verify interchangeability with system specifications before substitution.
Key specifications for 6680-01-381-8031: General Characteristics Item Description: IRON FRAME FOR SIGHT GLASS; End Item Identification: BLOWER RTY PO;SHIP,OHIO CLASS SSN (TRIDENT). 1 specification is 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.
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.