The O-Ring, cataloged under National Stock Number 5331-01-111-8436, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-111-8436 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Temp Rating | -30.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM |
| Criticality Code Justification | ZZZW |
| Elongation Percentage | 125 MAXIMUM |
| Departure From Cited Document | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 CLASS |
| Center Hole Diameter | 1.287 INCHES MINIMUM AND 1.311 INCHES MAXIMUM IN |
| Material | RUBBER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| SAE-AMS7276 | 3/1 Design control — primary reference Sae International Dba Sae International |
| M83248/1-125CP | 5/9 Secondary reference Naval Inventory Control Point Mechanicsburg |
| M83248/1-125 | 5/9 Secondary reference U.S. Government activity |
| AS3209-125 | 5/9 Secondary reference U.S. Government activity |
| D1234SW ITEM 49 | 5/9 Secondary reference Danco Valve Company |
| D1234SW ITEM 49 | C/1 Advisory reference — outside the item-of-supply concept Dante Valve Company |
| AS3209-125 | 5/9 Secondary reference Sae International Dba Sae International |
NSN 5331-01-111-8436 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-304-6541, 5331-01-517-6066. Verify interchangeability with system specifications before substitution.
Key specifications for 5331-01-111-8436: Temp Rating: -30.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM; Criticality Code Justification: ZZZW. 9 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.