# NSN 5340-00-999-3230: Seat, Helical Compression Spring

NSN 5340-00-999-3230 (also written 5340009993230; NIIN 00-999-3230) is a seat, helical compression spring in Federal Supply Class 5340, Hardware, Commercial. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5340-00-999-3230 (5340009993230)
- NIIN: 00-999-3230 (009993230)
- Item name: SEAT,HELICAL COMPRESSION SPRING
- Federal Supply Class: [FSC 5340 Hardware, Commercial](https://nsnexplorer.com/fsc/5340/)
- Federal Supply Group: [FSG 53](https://nsnexplorer.com/group/53/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AATA | COUNTERSINK ANGLE IN DEG | 90.0 |
| AAWY | COUNTERBORE DIAMETER | INCHES NOMINAL 1.1250 |
| ABKW | OVERALL HEIGHT | INCHES NOMINAL 0.3120 |
| ABPR | FIRST STEP DIAMETER | INCHES NOMINAL 2.1250 |
| ABXV | BORE DIAMETER | INCHES NOMINAL 0.3750 |
| APGF | DESIGN TYPE | SOLID |
| AYRZ | COUNTERSINK DIAMETER | INCHES MINIMUM 0.3760 AND INCHES MAXIMUM 0.3780 |
| BBRB | END DIAMETER | INCHES NOMINAL 1.1800 |
| BZDH | DISTANCE FROM END TO FIRST STEP | INCHES NOMINAL 0.2390 |
| BZDL | COUNTERBORE LENGTH | INCHES NOMINAL 0.2390 |
| BZMH | SPHERICAL SEAT TOP RADIUS | INCHES NOMINAL 0.0620 |
| MATT | MATERIAL | STEEL |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 7H9678 | 11083 | CATERPILLAR INC DIV CATERPILLAR DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-01 | [SPE7LX21D0087/SPE7LX27FA104](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5340009993230) | SEAT, HELICAL COMPRESSION SPRING | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $11.15 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5340009993230&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5340009993230
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/5340-00-999-3230/
JSON: https://nsnexplorer.com/api/nsn/5340-00-999-3230.json