The Packing,preformed, cataloged under National Stock Number 5330-01-240-1302, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Fluor Marine Propulsion, Llc Dba Knolls Atomic Power Laboratory. Government technical data includes 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-240-1302 |
| Primary Part Number | 856E945P51 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Fluor Marine Propulsion, Llc Dba Knolls Atomic Power Laboratory |
| Status | ACTIVE |
| Temp Rating | -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Hardness Rating | 80.0 SHORE DUROMETER A NOMINAL OVERALL |
| Criticality Code Justification | FEAT |
| Cross-Sectional Shape Style | O-RING |
| Peripheral Diameter | 1.299 INCHES MINIMUM AND 1.333 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.165 INCHES MINIMUM AND 1.187 INCHES MAXIMUM IN |
| Cross Section Outside Diameter | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Material | RUBBER ETHYLENE-PROPYLENE CLASS EPM OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 856E945P51 PRIMARY | Fluor Marine Propulsion, Llc Dba Knolls Atomic Power Laboratory (USA) |
| 2-025E540-80 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| 463492-2 | 5/9 Secondary reference Denver Instrument Co Ainsworth Div |
| 2-025E540-80 | C/1 Advisory reference — outside the item-of-supply concept Niantic Seal Inc Dba Atco |
| 909A356-21 | 5/9 Secondary reference Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh |
| 463492-2 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5330-01-240-1302 is a Packing,preformed, manufactured by Fluor Marine Propulsion, Llc Dba Knolls Atomic Power Laboratory, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-240-1302 has 2 manufacturer part numbers on file: 856E945P51 (Fluor Marine Propulsion, Llc Dba Knolls Atomic Power Laboratory), 2-025E540-80 (Parker-Hannifin Corp Div O-Ring Division).
Key specifications for 856E945P51: Temp Rating: -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Hardness Rating: 80.0 SHORE DUROMETER A NOMINAL OVERALL; Criticality Code Justification: FEAT; Cross-Sectional Shape Style: O-RING. 8 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.