The Ring,retaining, cataloged under National Stock Number 5325-00-281-6648, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5325-00-281-6648 |
| Primary Part Number | 3F3728 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — No Item Name Available |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | CANCELLED |
| Major Thickness | 0.125 INCHES NOMINAL IN |
| Inside Diameter | 3.500 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Material | STEEL |
| Casehardening Indicator | NOT CASEHARDENED |
| End Style | VERTEX OUTSIDE PERIPHERY |
| Ring Style | STRAIGHT GAP |
| Outside Diameter | 3.875 INCHES NOMINAL IN |
| Usage Design | EXTERNAL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A2044 | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| 3F3728 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 21418 PRIMARY | Wausau Equipment Company Llc Dba Schmidt Engineering & Equipment Inc Div Wausau Equipment Llc (USA) |
| A2622L PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| 21418 | Klauer Manufacturing Company (USA) |
| 5B2405 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5325-00-281-6648 is a Ring,retaining, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5325 (No Item Name Available). Status: cancelled.
NSN 5325-00-281-6648 has 6 cross-referenced part numbers: A2044 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), 3F3728 (Caterpillar Inc Div Caterpillar Defense), 21418 (Wausau Equipment Company Llc Dba Schmidt Engineering & Equipment Inc Div Wausau Equipment Llc), A2622L (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), 21418 (Klauer Manufacturing Company) and 1 more.
There are 6 known substitutes for 5325-00-281-6648: 5130-00-293-2410, 3895-00-352-3954, 7025-00-403-7470 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3F3728: Major Thickness: 0.125 INCHES NOMINAL IN; Inside Diameter: 3.500 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Material: STEEL. 9 total characteristics are documented in the Federal Logistics Information System.
NSN 5325-00-281-6648 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.