The Seal Ring,nuclear Coolant System, cataloged under National Stock Number 4470-00-892-5880, is classified within Federal Supply Class 4470 (Nuclear Reactors) of the Furnace, Steam, Drying, Nuclear Reactors group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4470-00-892-5880 |
| Item Name | Seal Ring,nuclear Coolant System |
| FSC / FSG | 4470 / 44 — Nuclear Reactors |
| Status | ACTIVE |
| Outer Radius | 0.374 INCHES NOMINAL IN |
| Largest Inside Diameter | 3.189 INCHES NOMINAL IN |
| Inner Radius | 0.281 INCHES NOMINAL IN |
| Outside Diameter Surface Angle in Deg | 45.0 |
| Material Document and Classification | QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | GENERAL |
| Wall Thickness | 0.093 INCHES NOMINAL IN |
| Upper Inside Diameter Surface Angle in Deg | 45.0 |
| Material | NICKEL ALLOY 400 |
| Small Inside Diameter | 2.625 INCHES NOMINAL IN |
| Reference Number Differentiating Characteristics | SELECTED AND TESTED FOR NUCLEAR SYSTEMS SPECIAL CLEANED IN ACCORDANCE WITH MIL-C-19874/SHIPS/ |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| S1C4100DC7009PC3 | 5/9 Secondary reference U.S. Government activity |
| 8915A52B1 | 3/9 Design control — primary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
NSN 4470-00-892-5880 is a Seal Ring,nuclear Coolant System, classified under FSC 4470, Nuclear Reactors. Status: active.
Key specifications for 4470-00-892-5880: Overall Height: 0.343 INCHES NOMINAL IN; Outer Radius: 0.374 INCHES NOMINAL IN; Largest Inside Diameter: 3.189 INCHES NOMINAL IN; Inner Radius: 0.281 INCHES NOMINAL IN. 11 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 4470-00-892-5880 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.