The O-Ring, cataloged under National Stock Number 5331-01-022-5627, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Cosmodyne, Llc Dba Cosmodyne Llc. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-022-5627 |
| Primary Part Number | 2601425-155 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Cosmodyne, Llc Dba Cosmodyne Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Outside Diameter | 4.193 INCHES NOMINAL IN |
| Center Hole Diameter | 3.959 INCHES MINIMUM AND 4.015 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY LIQUID OXYGEN CLEANING IN ACCORDANCE WITH MIL-C-52211 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2601425-155 | Cosmodyne, Llc Dba Cosmodyne Llc (USA) |
| Reference | Meaning |
|---|---|
| AS568-155MILR8791 | 3/1 Design control — primary reference Sae International Dba Sae International |
| APR568-155 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| AS568-155MILR8791 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5331-01-022-5627 is a O-Ring, manufactured by Cosmodyne, Llc Dba Cosmodyne Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-022-5627 has 1 manufacturer part number on file: 2601425-155 (Cosmodyne, Llc Dba Cosmodyne Llc).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-255-3504. Verify interchangeability with system specifications before substitution.
Key specifications for 2601425-155: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Outside Diameter: 4.193 INCHES NOMINAL IN; Center Hole Diameter: 3.959 INCHES MINIMUM AND 4.015 INCHES MAXIMUM IN; Material: PLASTIC POLYTETRAFLUOROETHYLENE. 5 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.