The O-Ring, cataloged under National Stock Number 5331-01-621-0738, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Hii Unmanned Systems, Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-Ring (FSG 53) |
| Manufacturers | Hii Unmanned Systems, Inc (CAGE 4Z5A9); Hydroid, Llc (CAGE 1W8F8) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-621-0738 |
| Primary Part Number | 25-277 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Hii Unmanned Systems, Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5331-01-621-0738 is a O-Ring, manufactured by Hii Unmanned Systems, Inc, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-621-0738 has 2 cross-referenced part numbers: 25-277 (Hii Unmanned Systems, Inc), 25-277 (Hydroid, Llc).
There are 4 known substitutes for 5331-01-621-0738: 5962-00-199-3824, 3510-01-143-4837, 5305-01-217-2125 and 1 more. Verify interchangeability with system specifications before substitution.