The O-Ring, cataloged under National Stock Number 5331-00-072-0383, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Lawler Manufacturing Company, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-072-0383 |
| Primary Part Number | 1744 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Lawler Manufacturing Company, Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Outside Diameter | 1.887 INCHES NOMINAL IN |
| Elongation Percentage | 300 MAXIMUM |
| Center Hole Diameter | 1.599 INCHES MINIMUM AND 1.619 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 1744 PRIMARY | Lawler Manufacturing Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| ARP568-223MILR2765 | 5/2 Secondary reference U.S. Government activity |
| ARP568-223MILR2 765 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-00-072-0383 is a O-Ring, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-072-0383 has 1 manufacturer part number on file: 1744 (Lawler Manufacturing Company, Inc.).
Key specifications for 1744: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Outside Diameter: 1.887 INCHES NOMINAL IN; Elongation Percentage: 300 MAXIMUM; Center Hole Diameter: 1.599 INCHES MINIMUM AND 1.619 INCHES MAXIMUM IN. 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.