The O-Ring, cataloged under National Stock Number 5331-01-257-7727, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Lgs Technologies Lp. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5331-01-257-7727 |
| Primary Part Number | 735-83951 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Lgs Technologies Lp |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Center Hole Diameter | 7.300 INCHES MINIMUM AND 7.400 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 |
|---|---|
| 735-83951 PRIMARY | Lgs Technologies Lp (USA) |
| Reference | Meaning |
|---|---|
| 7.35X.070 N103-70 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 13099860-1 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 5331-01-257-7727 is a O-Ring, manufactured by Lgs Technologies Lp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-257-7727 has 1 manufacturer part number on file: 735-83951 (Lgs Technologies Lp).
Key specifications for 735-83951: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Center Hole Diameter: 7.300 INCHES MINIMUM AND 7.400 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 3 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.