The Bar,metal, cataloged under National Stock Number 9530-00-097-0789, is classified within Federal Supply Class 9530 (Bars and Rods, Nonferrous Base Metal) of the Metal Bars, Sheets, and Shapes group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 10 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 9530-00-097-0789 |
| Primary Part Number | C90300 AS CAST 2 1/2 ROUNDL1 |
| Item Name | Bar,metal |
| FSC / FSG | 9530 / 95 — Bars and Rods, Nonferrous Base Metal |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Length | 8.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Heat Treatment | AS CAST |
| Criticality Code Justification | ZZZX |
| Material Document and Classification | QQ-C-390, ALLOY 903 FED SPEC 1ST MATERIAL RESPONSE |
| Surface Condition | POLISHED OVERALL |
| Basic Shape Style | ROUND |
| Departure From Cited Designator | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Nondefinitive Spec/std Data | D5 COMPOSITION AND AS CAST CONDITION AND 3 TYPE |
| Cross Section Outside Diameter | 2.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY 903 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| C90300 AS CAST 2 1/2 ROUNDL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| ASTM-B505 C90300 AS CAST 2 1/2L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| QQC390 | 4/1 Identification reference U.S. Government activity |
| ASTMB505C90300 AS CAST 2 1/2RD | 4/1 Identification reference U.S. Government activity |
| ASTM-B505 C90300 AS CAST 2 1/2 | 4/1 Identification reference U.S. Government activity |
| C90300 AS CAST 2 1/2 ROUND | 4/1 Identification reference U.S. Government activity |
| QQC390L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 9530-00-097-0789 is a Bar,metal, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 9530, Bars and Rods, Nonferrous Base Metal. Status: active.
NSN 9530-00-097-0789 has 2 manufacturer part numbers on file: C90300 AS CAST 2 1/2 ROUNDL1 (Naval Inventory Control Point Mechanicsburg), ASTM-B505 C90300 AS CAST 2 1/2L1 (Naval Inventory Control Point Mechanicsburg).
7 possible matches (shared part number, not a government interchangeability claim): 9530-00-097-0792, 9530-00-097-0797, 9530-00-107-8308. Verify interchangeability with system specifications before substitution.
Key specifications for C90300 AS CAST 2 1/2 ROUNDL1: Length: 8.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Heat Treatment: AS CAST; Criticality Code Justification: ZZZX; Material Document and Classification: QQ-C-390, ALLOY 903 FED SPEC 1ST MATERIAL RESPONSE. 10 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.