The O-Ring, cataloged under National Stock Number 5331-01-291-6864, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-291-6864 |
| Primary Part Number | AS568-425AMS7277 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Color | BLACK |
| Temp Rating | -60.0 CELSIUS AND 107.0 CELSIUS DEGC |
| Cross-Sectional Height | 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Center Hole Diameter | 4.442 INCHES MINIMUM AND 4.508 INCHES MAXIMUM IN |
| Material Document and Classification | AMS7277 ASSN STD SINGLE MATERIAL RESPONSE AND ASTMD2000 ASSN STD SINGLE MATERIAL RESPONSE |
| Material | RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR |
| Hardness Rating | 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| B0318 2-425 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| AS568-425AMS7277 PRIMARY | Sae International Dba Sae International (USA) |
| 2-425 B318-70 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 2-425 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| AS568-425AMS7277 | Society of Automotive Engineers Inc (USA) |
NSN 5331-01-291-6864 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-291-6864 has 5 cross-referenced part numbers: B0318 2-425 (Parker-Hannifin Corp Div O-Ring Division), AS568-425AMS7277 (Sae International Dba Sae International), 2-425 B318-70 (Parker-Hannifin Corp Div O-Ring Division), 2-425 (Parker-Hannifin Corp Div O-Ring Division), AS568-425AMS7277 (Society of Automotive Engineers Inc).
There are 12 known substitutes for 5331-01-291-6864: 3110-00-144-8596, 5325-00-262-7826, 7330-00-272-7876 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for AS568-425AMS7277: Color: BLACK; Special Features: O-RING SHAPE;HYDRAULIC FLUID, PHOSPHATE-ESTER BASE OR OIL, SYNTHETIC; Temp Rating: -60.0 CELSIUS AND 107.0 CELSIUS DEGC; Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.