The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-00-970-9908, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-00-970-9908 |
| Primary Part Number | 128HM10114-1 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flange Diameter | 1.031 INCHES NOMINAL IN |
| Flange Thickness | 0.062 INCHES NOMINAL IN |
| Body Outside Diameter | 0.692 INCHES NOMINAL IN |
| Style Designator | IRREGULAR |
| Material Document and Classification | QQ-S-763, CLASS 416 FED SPEC SINGLE MATERIAL RESPONSE |
| Body Inside Diameter | 0.565 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | STEEL COMP 416 |
| 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 |
|---|---|
| 128HM10114-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 128HM10114-1 | 5/9 Secondary reference Tek Precision Co Limited |
| 128HM10114-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5340-00-970-9908 is a Retainer,helical Compression Spr, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-970-9908 has 1 manufacturer part number on file: 128HM10114-1 (Northrop Grumman Systems Corporation).
Key specifications for 128HM10114-1: Flange Diameter: 1.031 INCHES NOMINAL IN; Overall Height: 0.887 INCHES NOMINAL IN; Flange Thickness: 0.062 INCHES NOMINAL IN; Body Outside Diameter: 0.692 INCHES NOMINAL IN. 8 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.