The Bar,metal, cataloged under National Stock Number 9510-01-516-4785, is classified within Federal Supply Class 9510 (Bars and Rods) of the Metal Bars, Sheets, and Shapes group. The manufacturer of record is Defense Logistics Agency Dba Defense Supply Center Philadelphia. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9510-01-516-4785 |
| Primary Part Number | UNS S21800 4IN DIA 10-12 FT LG |
| Item Name | Bar,metal |
| FSC / FSG | 9510 / 95 — Bars and Rods |
| Manufacturer | Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| Status | ACTIVE |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Heat Treatment | SOLUTION HEAT TREATED |
| Material Document and Classification | AMS 5848, UNS S21800 ASSN STD SINGLE MATERIAL RESPONSE |
| Basic Shape Style | ROUND |
| Cross Section Outside Diameter | 4.000 INCHES NOMINAL IN |
| Material | STEEL UNS S21800 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| UNS S21800 4IN DIA 10-12 FT LG | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| Reference | Meaning |
|---|---|
| AMS 5848 | 3/9 Design control — primary reference U.S. Government activity |
| AMS 5848 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 9510-01-516-4785 is a Bar,metal, manufactured by Defense Logistics Agency Dba Defense Supply Center Philadelphia, classified under FSC 9510, Bars and Rods. Status: active.
NSN 9510-01-516-4785 has 1 manufacturer part number on file: UNS S21800 4IN DIA 10-12 FT LG (Defense Logistics Agency Dba Defense Supply Center Philadelphia).
1 possible match (shared part number, not a government interchangeability claim): 9510-01-516-4786. Verify interchangeability with system specifications before substitution.
Key specifications for UNS S21800 4IN DIA 10-12 FT LG: Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Heat Treatment: SOLUTION HEAT TREATED; Material Document and Classification: AMS 5848, UNS S21800 ASSN STD SINGLE MATERIAL RESPONSE; Basic Shape Style: ROUND. 6 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.