The O-Ring, cataloged under National Stock Number 5331-01-579-3259, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Greene Tweed & Co Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-579-3259 |
| Primary Part Number | 7251959 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Greene Tweed & Co Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.106 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Center Hole Diameter | 4.375 INCHES MINIMUM AND 4.377 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 4270P24351-0050 | Greene Tweed & Co Inc (USA) |
| 7251959 PRIMARY | Greene Tweed & Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 7251959 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
NSN 5331-01-579-3259 is a O-Ring, manufactured by Greene Tweed & Co Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-579-3259 has 2 manufacturer part numbers on file: 4270P24351-0050 (Greene Tweed & Co Inc), 7251959 (Greene Tweed & Co Inc).
Key specifications for 7251959: Cross-Sectional Height: 0.106 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Center Hole Diameter: 4.375 INCHES MINIMUM AND 4.377 INCHES MAXIMUM IN; Part Name Assigned by Controlling Agency: INAVY: RING, STATIC BACKUP; DWG: RING, BACK-UP, STATIC; End Item Identification: MK 32 MOD 2, SLIDE. 2 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.