# NSN 5310-00-710-9429: Washer, Key

NSN 5310-00-710-9429 (also written 5310007109429; NIIN 00-710-9429) is a washer, key in Federal Supply Class 5310, Nuts and Washers. 4 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5310-00-710-9429 (5310007109429)
- NIIN: 00-710-9429 (007109429)
- Item name: WASHER,KEY
- 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 G: the government has a complete data package and the rights to use it. (observed 2026-11-04)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABPX | MATERIAL THICKNESS | INCHES NOMINAL 0.050 |
| CSKN | EXTERNAL PREBENT KEY ANGLE | DEGREES MINIMUM 24.5 AND DEGREES MAXIMUM 25.5 |
| ABMR | INTERNAL KEY QUANTITY | 2 |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | INCHES NOMINAL 5.000 |
| ABMQ | EXTERNAL KEY QUANTITY | 19 |
| ABLF | EXTERNAL PREBENT KEY WIDTH | INCHES NOMINAL 0.200 |
| ABLK | INTERNAL PREBENT KEY WIDTH | INCHES NOMINAL 0.180 |
| ABLS | DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | INCHES MINIMUM 2.065 AND INCHES MAXIMUM 2.085 |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 4.255 AND INCHES MAXIMUM 4.265 |
| ABKV | OUTSIDE DIAMETER | INCHES NOMINAL 4.610 |
| ABLB | INTERNAL PREBENT KEY LENGTH | INCHES NOMINAL 0.170 |
| MATT | MATERIAL | OVERALL STEEL OR STEEL COMP 4130 |
| SFTT | SURFACE TREATMENT | OVERALL OXIDE FILM |
| FEAT | SPECIAL FEATURES | EXTERNAL KEYS BENT 25 DEG |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S6357 OR MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-18729 |
| STYL | STYLE DESIGNATOR | — |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL MFR REF SINGLE TREATMENT RESPONSE BSFW4084,FSC- 97499 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 204-040-253-001 | 97499 | BELL TEXTRON INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 204-040-253-1 | 17128 | PYRAMID MACHINE CORP DIV OF TRANSUPPORT INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 204-040-253-1 | 80070 | LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN ROTARY AND MISSION SYSTEMS DIV RMS- MIC2 | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 204-040-253-1 | 97499 | BELL TEXTRON INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-19 | [SPE4AC26P0194](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310007109429) | WASHER, KEY | FLIGHT SOURCE INC | $540.00 |
| 2026-08-19 | [SPE4AC26P0194](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310007109429) | WASHER, KEY | FLIGHT SOURCE INC | $540.00 |
| 2026-08-19 | [SPE4AC26P0194](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310007109429) | WASHER, KEY | FLIGHT SOURCE INC | $540.00 |
| 2026-08-19 | [SPE4AC26P0194](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310007109429) | WASHER, KEY | FLIGHT SOURCE INC | $540.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310007109429&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310007109429
- 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/5310-00-710-9429/
JSON: https://nsnexplorer.com/api/nsn/5310-00-710-9429.json