The Seal Ring,metal, cataloged under National Stock Number 5330-00-759-0185, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Triumph Thermal Systems - Maryland, Inc.. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-759-0185 |
| Primary Part Number | 201603 |
| Item Name | Seal Ring,metal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Triumph Thermal Systems - Maryland, Inc. |
| Status | ACTIVE |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Outside Diameter | 2.010 INCHES MINIMUM AND 2.012 INCHES MAXIMUM IN |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.0830 INCHES MINIMUM AND 0.0930 INCHES MAXIMUM IN |
| Ring Style | EXPANDING CONCENTRIC |
| Material | STEEL OVERALL |
| Metallic Hardness Rating | 36.0 MINIMUM ROCKWELL C AND 43.0 MAXIMUM ROCKWELL C |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 201603 PRIMARY | Triumph Thermal Systems - Maryland, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 201603 | C/1 Advisory reference — outside the item-of-supply concept Defense & Development Enterprises Llc |
NSN 5330-00-759-0185 is a Seal Ring,metal, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-759-0185 has 1 manufacturer part number on file: 201603 (Triumph Thermal Systems - Maryland, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 2530-00-911-7069, 5360-01-375-7575, 5930-01-527-1909. Verify interchangeability with system specifications before substitution.
Key specifications for 201603: Overall Width: 0.6150 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Outside Diameter: 2.010 INCHES MINIMUM AND 2.012 INCHES MAXIMUM IN; Joint Style: VERTICAL JOINT. 7 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.