The O-Ring, cataloged under National Stock Number 5331-00-737-6758, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parco, Llc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-737-6758 |
| Primary Part Number | 7376758 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parco, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Center Hole Diameter | 5.461 INCHES MINIMUM AND 5.507 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 |
|---|---|
| 7376758 PRIMARY | Parco, Llc (USA) |
| 7376758 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 6760496 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 6760496 | General Motors Corp (USA) |
| 7376758 PRIMARY | Lydall Inc Elastomer Products Group (USA) |
| 7376758 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 7376758 | 3/2 Design control — primary reference U.S. Government activity |
| 6760496 | 5/9 Secondary reference Euclid Inc |
| 6760496 | 5/9 Secondary reference Rolls-Royce Solutions America Inc |
| 5330007376758 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 6760496 | 5/9 Secondary reference U.S. Government activity |
NSN 5331-00-737-6758 is a O-Ring, manufactured by Parco, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-737-6758 has 6 manufacturer part numbers on file: 7376758 (Parco, Llc), 7376758 (Parker-Hannifin Corp Div O-Ring Division), 6760496 (Allison Transmission Inc Dba Allison Transmission, Inc), 6760496 (General Motors Corp), 7376758 (Lydall Inc Elastomer Products Group) and 1 more.
Key specifications for 7376758: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Center Hole Diameter: 5.461 INCHES MINIMUM AND 5.507 INCHES MAXIMUM IN; End Item Identification: HOWITZER, M-109 SERIES; VEHICLE, RECOVERY M-578; 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.