1、AMSC N/A FSC 5310 MS17825J 27 June 2011 SUPERSEDING MS17825H 5 February 2004 DETAIL SPECIFICATION SHEET NUT, SELF-LOCKING, CASTELLATED, HEXAGON, 250 F NON-METALLIC INSERT This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiri
2、ng the product described herein shall consist of this specification sheet and NASM25027. KSHAPE OF TOPOPTIONALA30 5DMGJLWASHER FACE, CHAMFER OR RADIUS RELIEFOPTIONAL WHEN WITHIN THE 30 5ANGLE AND “M“ DIA LIMITATIONSCBOPPOSITE SLOTS MUST COINCIDE WITHIN.005 AND SLOT AXIS MUST BE WITHIN.005 OF THREAD
3、P.D. AXISMARK MFG IDENT.ON THIS SURFACERFIGURE 1. NUT. TABLE I. DASH NUMBERS, DIMENSIONS AND STRENGTHS. SIZE DASH NO. THREAD AS8879 A B C D G J MAX MIN MAX MIN MIN MAX MAX MIN MAX MIN -3 .1900-32 UNJF-3B .265 .235 .376 .367 .410 .215 .032 .006 .125 .105 -4 .2500-28 UNJF-3B .296 .266 .439 .430 .482 .
4、275 .036 .007 .141 .121 -5 .3125-24 UNJF-3B .343 .313 .502 .492 .552 .338 .042 .008 .188 .168 -6 .3750-24 UNJF-3B .421 .391 .564 .553 .622 .400 .235 .215 -7 .4375-20 UNJF-3B .468 .438 .690 .679 .766 .463 .050 .010 .282 .262 -8 .5000-20 UNJF-3B .578 .548 .752 .741 .837 .525 .375 .355 -9 .5625-18 UNJF
5、3B .624 .594 .877 .865 .978 .587 .055 .012 .406 .386 -10 .6250-18 UNJF-3B .734 .704 .940 .928 1.051 .650 .484 .464 -12 .7500-16 UNJF-3B .828 .798 1.064 1.052 1.191 .795 .063 .014 .578 .558 -14 .8750-14 UNJF-3B .921 .891 1.252 1.239 1.403 .900 .072 .016 .672 .652 -16 1.0000-12 UNJF-3B 1.015 .985 1.4
6、40 1.427 1.615 1.025 .766 .746 -18 1.1250-12 UNJF-3B 1.171 1.141 1.627 1.614 1.825 1.150 .083 .018 .828 .808 -20 1.2500-12 UNJF-3B 1.265 1.235 1.815 1.801 2.038 1.275 .891 .871 Reactivate after 5 February 2004 and may be used for new and existing designs and acquisitions. INCH-POUNDProvided by IHSNo
7、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS17825J 2 TABLE I. DASH NUMBERS, DIMENSIONS AND STRENGTHS (Continued) SIZE DASH NO. K L M R ULTIMATE TENSILE STRENGTHLB MIN TEST WRENCHING TORQUE (IN. LBS) ASSEMBLY TORQUE VIBRATION (IN. LBS) WEIGHTLB/100MAX MIN MIN MA
8、X MIN MAX MIN MAX MAX -3 .110 .376 .355 1,950 35 28 .400 -4 .108 .078 .125 .439 .418 .035 3,500 80 65 .650 -5 .172 .502 .480 5,500 225 180 1.000 -6 .218 .564 .543 9,000 325 260 1.400 -7 .155 .125 .265 .690 .675 .053 12,200 575 460 2.000 -8 .359 .752 .737 16,600 900 720 3.900 -9 .390 .877 .862 21,200
9、 1,100 880 6.900 -10 .468 .940 .925 27,400 1,600 1,300 11.400 -12 .562 1.064 1.049 40,000 2,800 2,200 16.900 -14 .187 .157 .656 1.252 1.237 .062 54,600 4,600 3,700 26.000 -16 .750 1.440 1.425 71,000 6,800 5,400 38.000 -18 .844 1.627 1.612 92,600 10,000 8,000 53.500 -20 .938 1.815 1.800 118,500 14,00
10、0 11,000 74.500 REQUIREMENTS: 1. MATERIALS: Steel, UNS G11370 (AISI 1137) per AMS5024 UNS G41300 (AISI 4130) per AMS6348 UNS G87400 (AISI 8740) per AMS6322, 6323, 6325, 6327, and 6358 INSERT MATERIAL: Nylon. 2. FINISH: Cadmium plating in accordance with SAE-AMS-QQ-P-416, Type II, Class 2. 3. Break a
11、ll sharp edges and remove burrs. 4. SURFACE TEXTURE: 125 in accordance with ASME B46.1. 5. DIMENSIONS: All dimensions are in inches unless otherwise specified. 6. DESIGN INFORMATION: These nuts may be used at temperatures 250 F and below in those types of applications for which slotted or castellate
12、d nuts are approved for use, and if such applications conflict with any limitation on the use of self-locking nuts, as cited by NASM33588, this standard takes precedence. Nuts are to be installed in accordance with NASM33540. 7. EXAMPLE OF PART NUMBER: MS17825-4 = .2500-28 nut, cadmium plated, non-m
13、etallic insert. 8. PERFORMANCE: Per NASM25027 except for: 1 Tabulated ultimate tensile strength values. 2 Vibration per NASM1312-7, (30,000 cycles) using assembly torques listed in Table I for one seated cycle. 3 Locking torque valves applicable for one cycle at room temperature only. 9. For design
14、feature purposes, this standard takes precedence over procurement document referenced herein. 10. Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Custodians: Preparing activity: Nav
15、y -AS DLA-IS Air Force - 99 (Project 5310-201-06) NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
