| Item Name | Thumbscrew |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-638-7534 (006387534) |
| NCB Code | USA (00) |
| Manufacturer | Realist Inc, Warren Industries Incorporated |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.625 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 1.188 INCHES NOMINAL |
| AASK | HEAD STYLE | THUMB NO. 1 |
| AASU | HEAD HEIGHT | 0.625 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 1.875 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.344 INCHES NOMINAL FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.188 INCHES NOMINAL FIRST SHOULDER |
| ABQJ | POINT STYLE | FLAT |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | COPPER ALLOY OVERALL |
| PRMT | PRECIOUS MATERIAL | SILVER |
| SFTT | SURFACE TREATMENT | SILVER OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Components Related to NSN - 5305-00-638-7534, 5305006387534 | ||||
| 5305-00-058-8627 (5305000588627) | 5305-01-464-0977 (5305014640977) | 5310-01-004-6958 (5310010046958) | 5315-01-470-7865 (5315014707865) | |
| 5340-00-015-2268 (5340000152268) | 5305-00-841-3941 (5305008413941) | 5320-00-205-9596 (5320002059596) | 5340-01-656-4589 (5340016564589) | |
| 5330-00-947-5111 (5330009475111) | 5365-01-569-6583 (5365015696583) | 5340-01-514-2291 (5340015142291) | 5315-01-532-4171 (5315015324171) | |
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