The O-Ring, cataloged under National Stock Number 5331-01-136-8615, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-136-8615 |
| Primary Part Number | 51939 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Center Hole Diameter | 15.262 INCHES MINIMUM AND 15.322 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.073 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 51939 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| 887B051939 | Northrop Grumman Systems Corporation (USA) |
| 051939 | L3 Technologies, Inc. Div L3 Keo (USA) |
| 887B051939 | L3 Technologies, Inc. Div L3 Keo (USA) |
NSN 5331-01-136-8615 is a O-Ring, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-136-8615 has 4 cross-referenced part numbers: 51939 (L3 Technologies, Inc. Div L3 Keo), 887B051939 (Northrop Grumman Systems Corporation), 051939 (L3 Technologies, Inc. Div L3 Keo), 887B051939 (L3 Technologies, Inc. Div L3 Keo).
There are 2 known substitutes for 5331-01-136-8615: 6640-00-213-5606, 6545-01-535-7061. Verify interchangeability with system specifications before substitution.
Key specifications for 51939: Center Hole Diameter: 15.262 INCHES MINIMUM AND 15.322 INCHES MAXIMUM IN; Cross-Sectional Height: 0.073 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 3 total characteristics are documented in the Federal Logistics Information System.