The O-Ring, cataloged under National Stock Number 5331-00-146-7277, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Abb Inc Dba Abb Inc Div Process Automation. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-146-7277 |
| Primary Part Number | 101A809U01 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Abb Inc Dba Abb Inc Div Process Automation |
| Status | ACTIVE |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Center Hole Diameter | 2.599 INCHES MINIMUM AND 2.619 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 101A809U01 | Abb Inc Dba Abb Inc Div Process Automation (USA) |
| Reference | Meaning |
|---|---|
| 290742 | 5/9 Secondary reference Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc |
| 101A809U01 | C/1 Advisory reference — outside the item-of-supply concept Abb Inc Dba Abb Inc Div Industrial Automation |
| 101A809U01 | 3/9 Design control — primary reference Fischer and Porter Co |
NSN 5331-00-146-7277 is a O-Ring, manufactured by Abb Inc Dba Abb Inc Div Process Automation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-146-7277 has 1 manufacturer part number on file: 101A809U01 (Abb Inc Dba Abb Inc Div Process Automation).
1 possible match (shared part number, not a government interchangeability claim): 6685-00-403-7642. Verify interchangeability with system specifications before substitution.
Key specifications for 101A809U01: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Center Hole Diameter: 2.599 INCHES MINIMUM AND 2.619 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 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.