The Ring,rod,piston, cataloged under National Stock Number 3040-01-343-1854, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Ramrod Industries Llc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-343-1854 |
| Primary Part Number | 721029 |
| Item Name | Ring,rod,piston |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Ramrod Industries Llc |
| Status | ACTIVE |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACEPLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | DIAGONAL JOINTDIAGONAL JOINT |
| Radial Wall Thickness | 0.1220 INCHES MINIMUM AND 0.1220 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM0.1260 INCHES MAXIMUM IN |
| Ring Style | CONCENTRICCONCENTRIC |
| Standard Bore Diameter | 3.0040 INCHES AND 3.0040 INCHES AND 3.0090 INCHES3.0090 INCHES IN |
| Material | GLASS FIBER OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 721029 PRIMARY | Ramrod Industries Llc (USA) |
NSN 3040-01-343-1854 is a Ring,rod,piston, manufactured by Ramrod Industries Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-343-1854 has 1 manufacturer part number on file: 721029 (Ramrod Industries Llc).
Key specifications for 721029: Overall Width: 0.7450 INCHES MINIMUM AND 0.7450 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM0.7550 INCHES MAXIMUM IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACEPLAIN RECTANGULAR, STRAIGHT FACE; Joint Style: DIAGONAL JOINTDIAGONAL JOINT; Radial Wall Thickness: 0.1220 INCHES MINIMUM AND 0.1220 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM0.1260 INCHES MAXIMUM IN. 6 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.