The Control Rod Drive Mechanism, cataloged under National Stock Number 4470-00-022-1052, is classified within Federal Supply Class 4470 (Nuclear Reactors) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Trw Inc Trw Compressor Components. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4470-00-022-1052 |
| Primary Part Number | 274D400-6 |
| Item Name | Control Rod Drive Mechanism |
| FSC / FSG | 4470 / 44 — Nuclear Reactors |
| Manufacturer | Trw Inc Trw Compressor Components |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 274D400-6 | Trw Inc Trw Compressor Components (USA) |
| Reference | Meaning |
|---|---|
| 2740400-6REVR | 3/1 Design control — primary reference Trw Inc Trw Compressor Components |
| 2740400-6 | 5/9 Secondary reference Bendix Corp the Brake and Steering Div |
NSN 4470-00-022-1052 is a Control Rod Drive Mechanism, manufactured by Trw Inc Trw Compressor Components, classified under FSC 4470, Nuclear Reactors. Status: active.
NSN 4470-00-022-1052 has 1 manufacturer part number on file: 274D400-6 (Trw Inc Trw Compressor Components).
Key specifications for 274D400-6: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 2 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 4470-00-022-1052 has DEMIL Code F. 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.