The Seal,plain Encased, cataloged under National Stock Number 5330-00-772-1421, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-772-1421 |
| Primary Part Number | 7721421 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — No Item Name Available |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Sealing Element Style | ANGULAR |
| Housing Bore Diameter | 4.125 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC SEALING ELEMENT |
| Seal Width | 0.406 INCHES NOMINAL IN |
| Case Style | SQUARE |
| Material | STEEL CASE |
| Accommodated Shaft Diameter | 2.875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 7721421 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5330-00-772-1421 is a Seal,plain Encased, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5330 (No Item Name Available). Status: active.
NSN 5330-00-772-1421 has 1 cross-referenced part number: 7721421 (U S Army Tank Automotive Command Amsta-Im-Mm).
There is 1 known substitute for 5330-00-772-1421: 5970-00-998-6118. Verify interchangeability with system specifications before substitution.
Key specifications for 7721421: Sealing Element Style: ANGULAR; Housing Bore Diameter: 4.125 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC SEALING ELEMENT; Seal Width: 0.406 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.