The Ring,wiper, cataloged under National Stock Number 5330-00-640-8538, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Industrial Supplies. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5330-00-640-8538 |
| Primary Part Number | ISR-21 |
| Item Name | Ring,wiper |
| FSC / FSG | 5330 / 53 — No Item Name Available |
| Manufacturer | Industrial Supplies |
| Status | CANCELLED |
| Inside Diameter | 2.000 INCHES NOMINAL IN |
| Test Data Document | 81349-MIL-S-5049 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| FSC Application Data | HYDRAULIC SYSTEM,ACFT |
| Surface Treatment | UNABLE TO DECODE |
| Specification/standard Data | 96906-MS28776 GOVERNMENT STANDARD |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Ring Style | CONCENTRIC |
| Joint Style | DIAGONAL JOINT |
| Cross-Sectional Shape Style | OUTSIDE GROOVED, STRAIGHT FACE |
| Surface Treatment Document and Classification | UNABLE TO DECODE |
| Outer Edge Thickness | 0.094 INCHES NOMINAL IN |
| Outside Diameter | 2.282 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| ISR-21 | Industrial Supplies (USA) |
| AN6231-21 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| GI 1171-21 | Gad-Jets Inc Dba Associated Technical Sales (USA) |
| 0AS-21 | Greene Tweed and Co Advantec Div (USA) |
| SRC-21 | Scrapper Rings Co Div of Roberts Tool Co (USA) |
| MS28776M2-21 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| FWR-3C-21 | Ace Products Co of Toledo Inc Dba Ace Products (USA) |
| MIL-R-5049 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-S-5049 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MS28776-21 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 5330PL1029404 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| G-21 | Gayle George W and Son (USA) |
| AN6231-A21 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| DRI-21 | Delta Mfg and Sales Inc (USA) |
NSN 5330-00-640-8538 is a Ring,wiper, manufactured by Industrial Supplies, classified under FSC 5330 (No Item Name Available). Status: cancelled.
NSN 5330-00-640-8538 has 14 cross-referenced part numbers: ISR-21 (Industrial Supplies), AN6231-21 (Aeronautical Standards Group Dept of Navy and Air Force), GI 1171-21 (Gad-Jets Inc Dba Associated Technical Sales), 0AS-21 (Greene Tweed and Co Advantec Div), SRC-21 (Scrapper Rings Co Div of Roberts Tool Co) and 9 more.
There are 7 known substitutes for 5330-00-640-8538: 4520-00-024-7403, 3455-00-252-3704, 6140-00-406-2634 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for ISR-21: Inside Diameter: 2.000 INCHES NOMINAL IN; Test Data Document: 81349-MIL-S-5049 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).; FSC Application Data: HYDRAULIC SYSTEM,ACFT; Surface Treatment: UNABLE TO DECODE. 13 total characteristics are documented in the Federal Logistics Information System.
NSN 5330-00-640-8538 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.