| Item Name | Support Block |
| INC Code | 77777 |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5340 Hardware Commercial |
| National Item Identification Number (NIIN) | 01-526-6971 (015266971) |
| NCB Code | USA (01) |
| Manufacturer | O T S I |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABHP | OVERALL LENGTH | 4.000 INCHES NOMINAL |
| SFTT | SURFACE TREATMENT | CADMIUM |
| ABKW | OVERALL HEIGHT | 1.500 INCHES NOMINAL |
| AGAV | END ITEM IDENTIFICATION | HEAVYWEIGHT T |
| ABMK | OVERALL WIDTH | 1.750 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | BLOCK WITH 0.876 INCH DIAMETER BORE THRU (1.500 IN), HAVING A KEYWAY OF 0.250 IN DIAMETER BORED TO CENTER; ALSO HAVING 2 0.531 INCH DIAMETER BORES THRU (1.750 IN) WITH FINAL .750 INCH BORE BEING 0.781 INCH DIAMETER SPACED EVENLY AT 2.750 IN |
| THDS | THREAD SIZE AND SERIES/TYPE DESIGNATOR | 0.250-20 UNC |
| Relevant Components for NSN - 5340-01-526-6971, 5340015266971 | ||||
| 5340-01-530-3084 (5340015303084) | 5340-01-490-4734 (5340014904734) | 5340-01-573-9262 (5340015739262) | 5340-00-186-2901 (5340001862901) | |
| 5340-00-939-2333 (5340009392333) | 5340-01-190-5859 (5340011905859) | 5340-01-510-7955 (5340015107955) | 5340-00-179-9249 (5340001799249) | |
| 5340-01-603-6032 (5340016036032) | 5340-00-942-3113 (5340009423113) | 5340-01-339-5636 (5340013395636) | 5340-01-344-8697 (5340013448697) | |
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AS 6081:2012 Certification |
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ESD S20.20-2014 Certification |
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