The Spring,helical,compression, cataloged under National Stock Number 5360-00-740-9902, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is American Trailers Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 24 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-740-9902 |
| Primary Part Number | SP33 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | American Trailers Inc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 3.000 INCHES MAXIMUM IN |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Spring Solid Length | 1.875 INCHES MAXIMUM IN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-474A,COMP A OR B FED SPEC SINGLE MATERIAL RESPONSE OVERALL A |
| Spring Free Length | 3.000 INCHES MINIMUM AND 3.500 INCHES MAXIMUM IN |
| Spring Deflection Rate | 525.000 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 2.125 INCHES NOMINAL IN |
| Spring Solid Outside Diameter | 3.000 INCHES MAXIMUM IN |
| Coil Quantity | 5 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SP33 PRIMARY | American Trailers Inc (USA) |
| SP33 | Heil Environmental Industries (USA) |
| 7409902 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| SP33 PRIMARY | Dayton-Walther Corp (USA) |
| SP33 PRIMARY | Trailmobile Inc Sub of the Pullman Co (USA) |
| Reference | Meaning |
|---|---|
| SP33 | 5/9 Secondary reference Krieger Steel Sections Inc |
| SP33 | 5/9 Secondary reference Timpte Inc |
| SP33 | 5/9 Secondary reference Watson H S Co |
| 1598N2 | 5/9 Secondary reference Diamond Reo Truck Co |
| SP33 | 5/9 Secondary reference Heil Co Tec Div |
| SP33 | 5/9 Secondary reference Great Dane Trailers Inc |
| SP33 | 3/2 Design control — primary reference U.S. Government activity |
| SP33 | 5/9 Secondary reference Strick Trailer Co |
| SP33 | 5/9 Secondary reference Miller Trailers Inc |
| DSF33 | 5/9 Secondary reference Enterprise Fabricators Inc |
| SP33 | 5/9 Secondary reference Kingham Trailer Co |
| KC1851 | 5/9 Secondary reference Diamond Reo Truck Co |
| SP33 | 5/9 Secondary reference Lufkin Industries, Inc. Dba Power Transmission |
| SP33 | 5/9 Secondary reference Premier Central Truck Body |
| 5360007409902 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 27UU0737 | 5/9 Secondary reference Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) |
| SP33 | 5/9 Secondary reference Gate City Steel Corp |
| 672886 | 5/9 Secondary reference Sasco Inc Canadian Div |
| 16C7435 | 3/2 Design control — primary reference U.S. Government activity |
| SP33 | 5/9 Secondary reference Nabors Trailers Inc Sub of Steego Corp |
NSN 5360-00-740-9902 is a Spring,helical,compression, manufactured by American Trailers Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-740-9902 has 5 manufacturer part numbers on file: SP33 (American Trailers Inc), SP33 (Heil Environmental Industries), 7409902 (U S Army Tank Automotive Command Amsta-Im-Mm), SP33 (Dayton-Walther Corp), SP33 (Trailmobile Inc Sub of the Pullman Co).
4 possible matches (shared part number, not a government interchangeability claim): 5365-01-071-6787, 5910-01-179-4767, 6150-01-398-5898. Verify interchangeability with system specifications before substitution.
Key specifications for SP33: Spring Free Outside Diameter: 3.000 INCHES MAXIMUM IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Solid Length: 1.875 INCHES MAXIMUM IN; Style Designator: CYLINDRICAL. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.