The O-Ring, cataloged under National Stock Number 5331-01-485-6435, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Freudenberg-Nok General Partnership Dba International Seal Co Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-485-6435 |
| Primary Part Number | ST1946-111 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Freudenberg-Nok General Partnership Dba International Seal Co Inc |
| Status | ACTIVE |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | MIL-R-83451/1 MIL SPEC SINGLE MATERIAL RESPONSE |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Center Hole Diameter | 0.419 INCHES MINIMUM AND 0.429 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| ST1946-111 PRIMARY | Freudenberg-Nok General Partnership Dba International Seal Co Inc (USA) |
| 5331PL0658571 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| ST1946-111 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| M83485/1-111 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| ST1946-111 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| ST1946-111 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| M83485/1-111 | Society of Automotive Engineers Inc (USA) |
NSN 5331-01-485-6435 is a O-Ring, manufactured by Freudenberg-Nok General Partnership Dba International Seal Co Inc, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-485-6435 has 7 cross-referenced part numbers: ST1946-111 (Freudenberg-Nok General Partnership Dba International Seal Co Inc), 5331PL0658571 (Jednolity Indeks Materialowy - Uniform Material Index), ST1946-111 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), M83485/1-111 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ST1946-111 (Parker-Hannifin Corp Div O-Ring Division) and 2 more.
There is 1 known substitute for 5331-01-485-6435: 5331-01-039-2521. Verify interchangeability with system specifications before substitution.
Key specifications for ST1946-111: Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: MIL-R-83451/1 MIL SPEC SINGLE MATERIAL RESPONSE; Material: RUBBER FLUOROCARBON CLASS FPM; Center Hole Diameter: 0.419 INCHES MINIMUM AND 0.429 INCHES MAXIMUM IN. 5 total characteristics are documented in the Federal Logistics Information System.