The O-Ring, cataloged under National Stock Number 5331-01-503-9184, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Executive Instruments, Inc. Dba Executive Instruments Inc Div Executive Technical Services,inc. Dba. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-503-9184 |
| Primary Part Number | 400635-0044 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Executive Instruments, Inc. Dba Executive Instruments Inc Div Executive Technical Services,inc. Dba |
| Status | ACTIVE |
| 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 |
|---|---|
| 400635-0044 PRIMARY | Executive Instruments, Inc. Dba Executive Instruments Inc Div Executive Technical Services,inc. Dba (USA) |
NSN 5331-01-503-9184 is a O-Ring, manufactured by Executive Instruments, Inc. Dba Executive Instruments Inc Div Executive Technical Services,inc. Dba, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-503-9184 has 1 manufacturer part number on file: 400635-0044 (Executive Instruments, Inc. Dba Executive Instruments Inc Div Executive Technical Services,inc. Dba).
Key specifications for 400635-0044: End Item Identification: COCKPIT FLOODLIGHT PART NO. 400635-100 FOR F16 AIRCRAFT. 0 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.