The Cam,control, cataloged under National Stock Number 3040-01-337-8121, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is R G Rollin Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3040-01-337-8121 |
| Primary Part Number | KR2238-3A |
| Item Name | Cam,control |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | R G Rollin Co |
| Status | CANCELLED |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| KR2238-3A PRIMARY | R G Rollin Co (USA) |
| Reference | Meaning |
|---|---|
| KR780800 | D/9 Drawing number reference only R G Rollin Co |
| KR2238 | D/9 Drawing number reference only R G Rollin Co |
NSN 3040-01-337-8121 is a Cam,control, manufactured by R G Rollin Co, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: cancelled.
NSN 3040-01-337-8121 has 1 manufacturer part number on file: KR2238-3A (R G Rollin Co).
4 possible matches (shared part number, not a government interchangeability claim): 3020-01-337-8144, 5310-01-344-8789, 3040-01-346-1753. Verify interchangeability with system specifications before substitution.
Key specifications for KR2238-3A: Special Features: CAST BRONZE. 0 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 3040-01-337-8121 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.