The Seal Ring,metal, cataloged under National Stock Number 5330-01-249-5340, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-249-5340 |
| Item Name | Seal Ring,metal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Inside Diameter | 7.651 INCHES MINIMUM AND 7.661 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 820-6015895-210-1 | 5/1 Secondary reference U.S. Government activity |
| 820-6015895-210-1 | 3/1 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 5330-01-249-5340 is a Seal Ring,metal, classified under FSC 5330, Packing and Gasket Materials. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5330-01-505-4616. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-01-249-5340: Criticality Code Justification: ZZZY; Overall Width: 0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN; Inside Diameter: 7.651 INCHES MINIMUM AND 7.661 INCHES MAXIMUM IN; Special Features: OVER-SIZE,8.503/8.508 INCHES;BONNET SEAL RING. IN. 4 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.