# NSN 5340-01-257-6178: Clamp, Loop

NSN 5340-01-257-6178 (also written 5340012576178; NIIN 01-257-6178) is a clamp, loop in Federal Supply Class 5340, Hardware, Commercial. 2 manufacturer part numbers from 2 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 5340-01-257-6178 (5340012576178)
- NIIN: 01-257-6178 (012576178)
- Item name: CLAMP,LOOP
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-11-08)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAAL | TONGUE HOLE TYPE | UNTHREADED ROUND |
| AAAP | CUSHIONING ENVIRONMENTAL PROTECTION | CORROSION RESISTANT AND WEATHER RESISTANT AND OIL RESISTANT |
| ABMK | OVERALL WIDTH | INCHES NOMINAL 0.750 |
| ABMZ | DIAMETER | INCHES NOMINAL 0.266 |
| ABPX | MATERIAL THICKNESS | INCHES NOMINAL 0.050 |
| AZCY | CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE | INCHES NOMINAL 0.980 |
| AZDA | LOOP WIDTH | INCHES NOMINAL 0.500 |
| AZDB | LOOP LENGTH | INCHES NOMINAL 1.000 |
| AZDC | DISTANCE FROM LOOP CENTER TO TONGUE END | INCHES NOMINAL 1.260 |
| FEAT | SPECIAL FEATURES | CONSISTS OF LATCH AND SPRING,LATCH PIVOT,RING AND RIVETS |
| MATT | MATERIAL | CUSHION RUBBER SILICONE CLASS Q |
| MATT | MATERIAL | BAND STEEL COMP 1010 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | CUSHION ASSN STD SINGLE MATERIAL RESPONSE A-S 3303 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | BAND ASSN STD SINGLE MATERIAL RESPONSE AST- A108 |
| SFTT | SURFACE TREATMENT | BAND CADMIUM AND CHROMATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BAND FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY2,CL2 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 30-233-1 | 97499 | BELL TEXTRON INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 521-8-8 | 83930 | TRANSDIGM INC DBA ADEL WIGGINS GROUP DIV ADEL WIGGINS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7L1-27-T-3969 | 17 | 2026-11-16 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5340012576178&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5340012576178&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5340012576178
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- 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/5340-01-257-6178/
JSON: https://nsnexplorer.com/api/nsn/5340-01-257-6178.json