The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-243-3658, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-243-3658 |
| Primary Part Number | 921 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — No Item Name Available |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| Design Type | SOLID |
| Material | COPPER ALLOY 268 |
| Style Designator | SEAT |
| Material Document and Classification | QQ-B-626, COMP 1, 1/2 H MFR REF SINGLE MATERIAL RESPONSE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 921 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 40397-09 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 40397-09 FIND 3 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
NSN 5340-01-243-3658 is a Seat,helical Compression Spring, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 5340 (No Item Name Available). Status: active.
NSN 5340-01-243-3658 has 3 cross-referenced part numbers: 921 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40397-09 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40397-09 FIND 3 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
There are 7 known substitutes for 5340-01-243-3658: 4820-01-168-2161, 4820-01-220-2704, 4820-01-242-8144 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 921: Design Type: SOLID; Material: COPPER ALLOY 268; Style Designator: SEAT; Material Document and Classification: QQ-B-626, COMP 1, 1/2 H MFR REF SINGLE MATERIAL RESPONSE. 4 total characteristics are documented in the Federal Logistics Information System.