The O-Ring, cataloged under National Stock Number 5331-01-481-4016, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Advanced Microwave Components, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-481-4016 |
| Primary Part Number | 203-5-158 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Advanced Microwave Components, Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.092 INCHES NOMINAL IN |
| Center Hole Diameter | 1.550 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 |
|---|---|
| 203-5-158 PRIMARY | Advanced Microwave Components, Inc (USA) |
| WR-112-HALF | Lnr Trexcom Inc (USA) |
NSN 5331-01-481-4016 is a O-Ring, manufactured by Advanced Microwave Components, Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-481-4016 has 2 manufacturer part numbers on file: 203-5-158 (Advanced Microwave Components, Inc), WR-112-HALF (Lnr Trexcom Inc).
Key specifications for 203-5-158: Cross-Sectional Height: 0.092 INCHES NOMINAL IN; Center Hole Diameter: 1.550 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: O-RING,WAVEGUIDE; End Item Identification: FTSAT;COMMUNICATIONS AND DATA SYS. 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.