The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-930-5436, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Trw Inc Trw Intl Trade Government Sales Dept. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-930-5436 |
| Primary Part Number | 11609964 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Trw Inc Trw Intl Trade Government Sales Dept |
| Status | ACTIVE |
| First Step Diameter | 1.2000 INCHES MINIMUM AND 1.2100 INCHES MAXIMUM IN |
| Material Hardness Rating | 58.0 ROCKWELL C NOMINAL |
| End Diameter | 0.6875 INCHES NOMINAL IN |
| Distance From End to First Step | 0.4075 INCHES MINIMUM AND 0.4325 INCHES MAXIMUM IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Features Provided | CASEHARDENED |
| Second Step Diameter | 1.6200 INCHES NOMINAL IN |
| Bore Taper in Deg | 7.0 |
| First Step Length | 0.2000 INCHES NOMINAL IN |
| Chamfer Angle in Deg | 12.0 |
| Bore Diameter | 0.5880 INCHES NOMINAL IN |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 11609964 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 11609964 PRIMARY | Trw Inc Trw Intl Trade Government Sales Dept (USA) |
| 0375601-00 PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 11609964 | Renk America Llc Div Renk America (USA) |
| Reference | Meaning |
|---|---|
| 2815009305436 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 11609964 | 5/9 Secondary reference Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc |
| 0375601-00 | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 5340-00-930-5436 is a Seat,helical Compression Spring, manufactured by Trw Inc Trw Intl Trade Government Sales Dept, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-930-5436 has 4 manufacturer part numbers on file: 11609964 (U S Army Tank Automotive Command Amsta-Im-Mm), 11609964 (Trw Inc Trw Intl Trade Government Sales Dept), 0375601-00 (Brinkley Technology Group Llc Dba Hercules Manufacturing), 11609964 (Renk America Llc Div Renk America).
Key specifications for 11609964: Overall Height: 0.7300 INCHES NOMINAL IN; First Step Diameter: 1.2000 INCHES MINIMUM AND 1.2100 INCHES MAXIMUM IN; Material Hardness Rating: 58.0 ROCKWELL C NOMINAL; End Diameter: 0.6875 INCHES NOMINAL IN. 13 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.