# NSN 5310-00-761-9645: Washer, Spring Tension

NSN 5310-00-761-9645 (also written 5310007619645; NIIN 00-761-9645) is a washer, spring tension in Federal Supply Class 5310, Nuts and Washers. 5 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5310-00-761-9645 (5310007619645)
- NIIN: 00-761-9645 (007619645)
- Item name: WASHER,SPRING TENSION
- Federal Supply Class: [FSC 5310 Nuts and Washers](https://nsnexplorer.com/fsc/5310/)
- 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 2026-10-27)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| STYL | STYLE DESIGNATOR | — |
| ABKV | OUTSIDE DIAMETER | INCHES NOMINAL 1.355 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MFR REF SINGLE MATERIAL RESPONSE COND C FSC- 79500 |
| SFTT | SURFACE TREATMENT | OVERALL PASSIVATE |
| AAUB | HOLE DIAMETER | INCHES NOMINAL 1.050 |
| ABKW | OVERALL HEIGHT | INCHES NOMINAL 0.115 |
| ABPX | MATERIAL THICKNESS | INCHES NOMINAL 0.017 |
| MATT | MATERIAL | OVERALL STEEL COMP 631 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 735738 | 99167 | HAMILTON SUNDSTRAND CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 9167664-66 | 18876 | US ARMY AVIATION AND MISSILE COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 921B835-1 | 79500 | WESTINGHOUSE ELECTRIC CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 921B835-1 | 83843 | SUNDSTRAND CORP ELECTRIC POWER SYSTEMS DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 921B835-1 | 99167 | HAMILTON SUNDSTRAND CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-03 | [SPE4A624V442Y](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310007619645) | WASHER, SPRING TENSI | — | $5,535.00 |
| 2026-09-03 | [SPE4A624V442Y](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310007619645) | WASHER, SPRING TENSI | — | $5,535.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310007619645&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310007619645
- 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/5310-00-761-9645/
JSON: https://nsnexplorer.com/api/nsn/5310-00-761-9645.json