The Gage Rod-Cap,liquid Level, cataloged under National Stock Number 6680-00-321-6220, 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 Renk America Llc Div Renk America. 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. 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 | 6680-00-321-6220 |
| Primary Part Number | 551576 |
| Item Name | Gage Rod-Cap,liquid Level |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Renk America Llc Div Renk America |
| Status | ACTIVE |
| Rod Measuring Portion Width | 0.310 INCHES NOMINAL IN |
| Cap Type | FRICTION |
| Handle | NOT FURNISHED |
| Scale Inscription | DANGER AND ADD OIL |
| Material Document and Classification | QQ-S-777-CANCELED FED SPEC SINGLE MATERIAL RESPONSE |
| Inside Diameter | 2.630 INCHES MINIMUM AND 2.650 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM |
| Rod Length From End to Cap | 39.905 INCHES IN |
| Material | STEEL COMP 1045 OR STEEL COMP 1050 OR STEEL COMP 1055 OR STEEL COMP 1065 OR STEEL COMP 1075 OR STEEL COMP 1085 OR STEEL COMP 1095 |
| Inside Height | 1.700 INCHES NOMINAL IN |
| Rod Measuring Portion Thickness | 0.032 INCHES NOMINAL IN |
| Distance From Rod End to Scale Graduation | 1.120 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 6680-00-321-6220 is a Gage Rod-Cap,liquid Level, manufactured by Renk America Llc Div Renk America, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-321-6220 has 2 manufacturer part numbers on file: 551576 (Renk America Llc Div Renk America), 8732852 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-657-9029. Verify interchangeability with system specifications before substitution.
Key specifications for 551576: Rod Measuring Portion Width: 0.310 INCHES NOMINAL IN; Cap Type: FRICTION; Handle: NOT FURNISHED; Scale Inscription: DANGER AND ADD OIL. 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.
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.