The O-Ring, cataloged under National Stock Number 5331-00-166-1111, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Defense Logistics Agency Dba Defense Supply Center Philadelphia. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-00-166-1111 |
| Primary Part Number | AS3581-220 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| Status | CANCELLED |
| Temp Rating | -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN |
| Outside Diameter | 1.637 INCHES NOMINAL IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2621-607-01 PC 65-4 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 40688-8 PC 22 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| AS3581-220 PRIMARY | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| MILR83248 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| M83248/2-220 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| AMS7259 | Society of Automotive Engineers Inc (USA) |
| 395-02 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| AMS7259 | Sae International Dba Sae International (USA) |
| FF-S-TY-VI 3/8X 7/8INLGUNC3A | Zf Industrieantriebe Witten Gmbh (DEU) |
| FF-S-86 TY VI 3 /8X7/8INLGUNC3A | Zf Industrieantriebe Witten Gmbh (DEU) |
NSN 5331-00-166-1111 is a O-Ring, manufactured by Defense Logistics Agency Dba Defense Supply Center Philadelphia, classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-00-166-1111 has 10 cross-referenced part numbers: 2621-607-01 PC 65-4 (Electric Boat Corporation Div General Dynamics Electric Boat), 40688-8 PC 22 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), AS3581-220 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), MILR83248 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M83248/2-220 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 5 more.
There are 9 known substitutes for 5331-00-166-1111: 5331-00-103-2911, 2530-00-350-8644, 6110-00-477-9677 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for AS3581-220: Temp Rating: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Center Hole Diameter: 1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN; Outside Diameter: 1.637 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.
NSN 5331-00-166-1111 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.