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National Stock Number:
4730-00-287-0273
Federal Supply Class:
4730
National Item Identification Number:
002870273
Description:
NUT,TUBE COUPLING
Detail:
AN INTERNALLY THREADED NUT WHICH HAS EITHER AN INTERNAL SEAT OR SHOULDER AND/OR IS DESIGNED TO BE USED WITH A FERRULE, TO MATE WITH THE SEAT OF AN EXTERNALLY THREADED TUBE FITTING TO FORM A LEAKPROOF CONNECTION. EXCLUDES NUT (1), TUBE COUPLING, REDUCING; AND NUT (1), UNION.
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Manufacturer Information:
| 290-28D | 00624 | EATON AEROQUIP LLC | | 720335-28 | 56232 | LOCKHEED MARTIN CORPORATION | | AN818-28D | 14798 | DESIGNED METAL CONNECTIONS INC | | AN818-28D | 32142 | HYDRASEARCH COMPANY, LLC | | 731857-128 | 56232 | LOCKHEED MARTIN CORPORATION | | AN818-28D | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | | AS4841 | 0U583 | SAE INTERNATIONAL | | SAE-AS4841 | 0U583 | SAE INTERNATIONAL | | MILF5509A | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| THREAD SERIES | UN | | NOMINAL THREAD SIZE | 2.250 INCHES | | THREAD QUANTITY PER INCH | 12 | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | MATERIAL | ALUMINUM ALLOY OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | NUT STYLE | TUBE COUPLING | | NUT HEIGHT | 1.562 INCHES NOMINAL | | WIDTH ACROSS FLATS | 2.605 INCHES MINIMUM AND | | 2.645 INCHES MAXIMUM | | LENGTH TO SHOULDER | 1.316 INCHES NOMINAL | | SMALLEST INSIDE DIAMETER | 1.890 INCHES MINIMUM AND | | 1.893 INCHES MAXIMUM | | NOMINAL TUBE OUTSIDE DIAMETER | 1.750 INCHES | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 88044 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN818-28D |
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