The O-Ring, cataloged under National Stock Number 5331-01-133-7249, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Watervliet Arsenal Div Business Development. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-133-7249 |
| Primary Part Number | 128-4677986 ITEM 28 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Army, United States Department of the Dba Watervliet Arsenal Div Business Development |
| Status | ACTIVE |
| Cross-Sectional Height | 0.078 INCHES NOMINAL 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 |
|---|---|
| 128-4677986 ITEM 28 | Army, United States Department of the Dba Watervliet Arsenal Div Business Development (USA) |
| 128-4677986 ITEM 28 | Naval Undersea Warfare Center Keyport Div (USA) |
| Reference | Meaning |
|---|---|
| 128-4677986 ITEM 28 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5331-01-133-7249 is a O-Ring, manufactured by Army, United States Department of the Dba Watervliet Arsenal Div Business Development, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-133-7249 has 2 manufacturer part numbers on file: 128-4677986 ITEM 28 (Army, United States Department of the Dba Watervliet Arsenal Div Business Development), 128-4677986 ITEM 28 (Naval Undersea Warfare Center Keyport Div).
Key specifications for 128-4677986 ITEM 28: Cross-Sectional Height: 0.078 INCHES NOMINAL IN; Special Features: MATERIAL - POLYTETRAFLUOROETHYLENE; End Item Identification: SURFACE SEARCH ANT HULL FITTING ASSY & DETS. 1 specification is 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.