The O-Ring, cataloged under National Stock Number 5331-01-129-3145, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corporation Div O-Ring Division. Government technical data includes 7 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through both NSN and commercial part number lookups. 16 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-01-129-3145 |
| Primary Part Number | PRP904-11648 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker Hannifin Corporation Div O-Ring Division |
| Status | CANCELLED |
| Temp Rating | -90.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Outside Diameter | 0.484 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN |
| Hardness Rating | 80.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 125 MAXIMUM |
| Center Hole Diameter | 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROSILICONE CLASS FQ |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PRP904-11648 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| 904-11648 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| 3-904L1007-80 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| M25988/4-904 | 2/2 Government specification standardization U.S. Government activity |
| AMS-R-25988 | 5/1 Secondary reference Sae International Dba Sae International |
| 3636/2-904 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 3-904L1218-80 | 5/1 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 3-904 L806-80 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| MIL-DTL-25988/4 | 4/1 Identification reference U.S. Government activity |
| MIL-R-25988/4 | 5/9 Secondary reference U.S. Government activity |
| 3-904 L806-80 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| AMS-R-25988 | 5/9 Secondary reference U.S. Government activity |
| 78172-904 | 5/1 Secondary reference Triumph Engine Control Systems Llc |
| 5331PL1086585 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| A-904TH1058 | 5/2 Secondary reference U.S. Government activity |
| L1218-80 3-904 | 5/1 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 3-904(L1007-80) | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| U522218-5 | E/8 Replaced / superseded reference Triumph Thermal Systems, Llc |
NSN 5331-01-129-3145 is a O-Ring, manufactured by Parker Hannifin Corporation Div O-Ring Division, classified under FSC 5331, O-ring. Status: cancelled.
NSN 5331-01-129-3145 has 2 manufacturer part numbers on file: PRP904-11648 (Parker Hannifin Corporation Div O-Ring Division), 904-11648 (Parker Hannifin Corporation Div O-Ring Division).
10 possible matches (shared part number, not a government interchangeability claim): 5331-01-206-8069, 5331-01-210-2836, 5331-01-437-0082. Verify interchangeability with system specifications before substitution.
Key specifications for PRP904-11648: Temp Rating: -90.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN; Outside Diameter: 0.484 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN; Hardness Rating: 80.0 SHORE DUROMETER A NOMINAL. 7 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.
NSN 5331-01-129-3145 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.