The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-130-0937, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-130-0937 |
| Primary Part Number | 2493754 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Flange Diameter | 4.287 INCHES MINIMUM AND 4.302 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2404 ASSN STD SINGLE TREATMENT RESPONSE |
| Flange Thickness | 0.056 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN |
| Body Outside Diameter | 3.912 INCHES MINIMUM AND 3.958 INCHES MAXIMUM IN |
| Style Designator | PARALLEL |
| Material Document and Classification | AMS 5044 ASSN STD SINGLE MATERIAL RESPONSE |
| Body Inside Diameter | 3.670 INCHES MINIMUM AND 3.700 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Surface Treatment | NICKEL |
| Material | STEEL COMP 1010 |
| 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 |
|---|---|
| 2493754 | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 2493754 | 3/2 Design control — primary reference U.S. Government activity |
| 10112555 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5340-01-130-0937 is a Retainer,helical Compression Spr, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-130-0937 has 1 manufacturer part number on file: 2493754 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 2493754: Flange Diameter: 4.287 INCHES MINIMUM AND 4.302 INCHES MAXIMUM IN; Overall Height: 1.776 INCHES MINIMUM AND 1.814 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS 2404 ASSN STD SINGLE TREATMENT RESPONSE; Flange Thickness: 0.056 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN. 10 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.