The Spring,helical,extension, cataloged under National Stock Number 5360-00-321-6471, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mack Trucks Inc Parts Opn. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-321-6471 |
| Primary Part Number | 368SJ17 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — No Item Name Available |
| Manufacturer | Mack Trucks Inc Parts Opn |
| Status | ACTIVE |
| Inside Diameter | 0.570 INCHES NOMINAL IN |
| End Style | RAISED HOOK SECOND END |
| Hook Radius | 0.250 INCHES NOMINAL SECOND END IN |
| Design Type | CLOSED |
| End Style | OFSET HOOK FIRST END |
| Coil Quantity | 6-3/4 |
| Material | STEEL OVERALL |
| Surface Treatment | ENAMEL OVERALL |
| Load Rating | 50.00 POUNDS NOMINAL LBS |
| Spring Length Under Load | 1.560 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.250 INCHES NOMINAL FIRST END IN |
| Coil to Hook Inside Length | 0.270 INCHES NOMINAL SECOND END IN |
| Spring Deflection Rate | 135.400 POUNDS PER INCH NOMINAL LBS |
| Spring Free Outside Diameter | 0.810 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material Document and Classification | QQ-W-428 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 2.020 INCHES NOMINAL IN |
| Hook Radius | 0.120 INCHES NOMINAL FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5360-00-321-6471 is a Spring,helical,extension, manufactured by Mack Trucks Inc Parts Opn, classified under FSC 5360 (No Item Name Available). Status: active.
NSN 5360-00-321-6471 has 4 cross-referenced part numbers: 368SJ17 (Mack Trucks Inc Parts Opn), 368SJ17 (Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations), 8333079 (U S Army Tank Automotive Command Amsta-Im-Mm), 47755 (Bendix Corp the Brake and Steering Div).
There are 2 known substitutes for 5360-00-321-6471: 5330-00-531-5996, 5999-01-175-4656. Verify interchangeability with system specifications before substitution.
Key specifications for 368SJ17: Inside Diameter: 0.570 INCHES NOMINAL IN; End Style: RAISED HOOK SECOND END; Hook Radius: 0.250 INCHES NOMINAL SECOND END IN; Design Type: CLOSED. 19 total characteristics are documented in the Federal Logistics Information System.