The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-330-5599, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-330-5599 |
| Primary Part Number | 753661-1 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Material Hardness Rating | 75.5 ROCKWELL 15N MINIMUM |
| Body Outside Diameter | 1.356 INCHES MINIMUM AND 1.372 INCHES MAXIMUM IN |
| Style Designator | IRREGULAR |
| Material Document and Classification | AMS 5512 ASSN STD SINGLE MATERIAL RESPONSE |
| Body Inside Diameter | 0.815 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | STEEL COMP 347 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | F |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 753661-1 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 5340-01-330-5599 is a Retainer,helical Compression Spr, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-330-5599 has 1 manufacturer part number on file: 753661-1 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 753661-1: Overall Height: 0.100 INCHES NOMINAL IN; Material Hardness Rating: 75.5 ROCKWELL 15N MINIMUM; Body Outside Diameter: 1.356 INCHES MINIMUM AND 1.372 INCHES MAXIMUM IN; Style Designator: IRREGULAR. 7 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.