The O-Ring, cataloged under National Stock Number 5331-01-065-5954, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 10 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-065-5954 |
| Primary Part Number | AS568-439/MIL-G-21569 CL 1 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Temp Rating | -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Outside Diameter | 7.025 INCHES NOMINAL IN |
| Hardness Rating | 65.0 SHORE DUROMETER A NOMINAL |
| Criticality Code Justification | ZZZY |
| Elongation Percentage | 250 MAXIMUM |
| Center Hole Diameter | 6.452 INCHES MINIMUM AND 6.498 INCHES MAXIMUM IN |
| Test Data Document | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTERS SPECIAL QUALITY CONTROL PROVISIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| AS568-439/MIL-G-21569 CL 1 | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| 2-439N674-70 | 3/1 Design control — primary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-439 N674-70 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| AS568-439/MIL-G-21569 CL 1 | 5/9 Secondary reference U.S. Government activity |
| AS568-439MIL-G- 21569 CL.1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| AS568-439MIL-G- 21569 CLASS 1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| OR51 | 5/9 Secondary reference Separation & Recovery Systems Inc |
| 332 ITEM 2 | C/1 Advisory reference — outside the item-of-supply concept Separation & Recovery Systems Inc |
| 5331PL1247877 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5331-01-065-5954 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-065-5954 has 1 manufacturer part number on file: AS568-439/MIL-G-21569 CL 1 (Sae International Dba Sae International).
Key specifications for AS568-439/MIL-G-21569 CL 1: Temp Rating: -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Outside Diameter: 7.025 INCHES NOMINAL IN; Hardness Rating: 65.0 SHORE DUROMETER A NOMINAL. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.