FITTINGS, TETRAFIUOROETHYIENE HI(WI TEMPERATURE, HIGH PRESSURE (3000 PSI) HYDRAULIC ANDPNEUMATIC CLASSIFICATION OF DEFECTS

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1 M-STD-54(USAF)? MARCH 97 MLTARY STANDARD FTTNGS, TETRAFUOROETHYENE HOSE H(W TEMPERATURE, HGH PRESSURE (3000 PS) HYDRAULC ANDPNEUMATC CLASSFCATON OF DEFECTS m

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3 ML-STD-54(USAF) 7 March 97 DEPARTMENT OF THE AR FORCE Fittings, Tetrafluoroethylene Hose High Temperature, High Pressure (3000 PS) Hydraulic and Pneumatic Classification of Defects ML-STD-54. This standard has been approved by the Air Force. Use of this standard by activities under cognizance of the Air Force shall be mandatory, effective on date of issue. 2. Recommended corrections, additions, or deletions should be addressed to Aeronautical Systems Division, Directorate of Engineering Standards, ATTN: ~ZSS, Wright-Patterson AFB, O

4 --- ML-STD-54(USAF) 7 March 97 contents paragraph SCOPE APPLC~LE DOCUMENTS TABULATON OF CLASSFCATON OF DEFECTS FOR FTTNGS and 2 2, 3, 4 and 5 d

5 y~l-std-lj4(~saf ) 7 March 97 MLTARY STANDA~ FTTT?NGS, TETRAFLUOROETHYLENE HOSE, HTCJ+TEMPEWTU~, HGH PRESS~E (3000 PS) HYDRAULC AND PNE~TC, CLASSFCATON OF DEFECTS the classification of defects for. SCOPE This standard covers fittings covered by ML-F APPLC~LE DOC~NTS on date of nvitation 2. The following documents, of the issue in effect for bids or requests for proposal, fom a part of this standard to the extent specified herein: standards _- Military MS2766 MS2767 MS2T68 MS2769 MS27620 MS2762 MS27622 MS27623 MS27624 MS27625 MS27626 MS27627 MS27628 MS27629 MS27630 MS2763i Adapter Assembly, Flared, Straigh~, lube to hose - with Swivel Nut. co Hose - vit~ Adapter Assembly, Flared, 45 Elbow, lube Swivel NUK Adapter Assembly, Flared, 90 Elbow, Tube to Hose - with Swivel Nut Nipple Sub-&sembly, with Swivel Nut Flared, S:raight - Elbow Sub-&sembly$ Flared, 45 ~ Swivel Nut Elbow Sub- Assedly, Flared, 90, Swivel Nut Socket, Hose Coupling Sleeve, Hose Coupling Union, Nipple Wire, Retainer Nipple, Flared, Tube sw&l to Hose- Nu: Elbow, Flared, Tube to Hose - 90.,!wivel Nut Elbow, Flared, Tube to Hose - 45, Sw:vel Nut Straight, Tube to Hose - with Adapter Assembly, Flareless, Swivel Nut Adapter Assembly, Flareless, 45 Llbow, Tube to Hose - with Swivel Nut 0 Elbow, Tube Adapter Assembly, Flareless, 90 tc Pose - witt. Swivel Nut - -

6 . MLL-STD-54(USAF) 7 March 97 >fs27(j32 :,l~~7(j33 MS27634 MS27635 MS27636 MS27637 Sgralgnt - with S WiV~l Nipple Sub-Assemblv} Fiareless, A5 ~ Sh-lvelNut Elbow Sub-Assembly, Flareless, Elebow Sub-Assemblv, Flareless, Nipple, Flareless, Tube to Hose Elbow, Flareless, Tube to Hose Elbow, Flareless, Tube to Hose 90U, with Swivel :(Ut Swivel Nut 90 with Swivel Nut - 45, with Swivel Nut required (Copies Of specifications. tandards rawings} and ~~~~~~~~~~hou~d be by suppliers in connection with specific procurement directed by the contracting obtained from the procuring activity or as officer.) MS MS2766 t hru XS2762 M27629 th ru MS27634 nspection for Defects! Major Minor Spotcheck s i~~l action Of All component Parts. inspected and wire-on components. k!lrt accepted zo applicable defec~ not?roperly classificaliu~. assembied into wire hole. Correct components Material Thread finish Gage point A &t R Thread size T Min thread depth PC Proper dry blast of threads as applicable Y:dti~atlonsand general workmanship. Threads may be class 2B after proof pressure test. Angle ~ [ External diameter,,e?and ~lh~l External length B over-ali length A External ~engtn c nternal dia M External dia D ; External dia F! nternal dia s i internal dla AZ, External dia + G Burrs, corner Hey.size J breaks, radii) Location of D form aagles, ring K. and general Radius L workmanship Yax thread depth P

7 ML-sTD-54(usAr) 7 March Najor nspection for Defects Minor ;Potcheck 4 Chamfer locatior. w-ak Angle 0C Y-AF Angle nc Z-AC Angle 0C AA-AJ Angle 0C AB-~ Angle 0C AD-AE nternal length AW nternal length Ay MS27623 / Material Finish on area AX Chamfer dia D Serration dia F Gage point J-B Gage point U-Z 0.006R on crest of serrations. Proper application of dry film on area AX Over*all length A External dia C nternal dia E nternal dia c nternal depth P External dia H-K Width-shoulder R Burrs, corner breaks radii, form angles and general workmanship. Discoloration due to heat treat sh; not be cause for rejection. Serration depth s Rockwell hardness Angle ~ Serration locations,,f! &?:J* Cage point Y-AA External lgt At External lgt AD D groove on 0 A - XS27624 >~t~ria~ Thread size T * nternal dia P Wire groove 0C M Proper application of dry film in i areas x-y * To be checked pr~or tc applicatirv Over-all le~lgth A External lgt B External dia E hcirelief dia ~ wire hole dia ~? \{irehole 0C W Wire groove dia R Thread size T?lin lgt thread Major thd dia G Burrs, corner breaks and general work- mansh~p of dry i~lsn lubricant. 3 Ext dia H Hex size ~J~ 30 wire hole oc angle. Wire groove widt~,!; Wire groove radius D groove depth AC and location O

8 ML-STD-54(USM) 7 March 97 v?s F MS27625 XS27635 i nspection for Defects -.~ Mnor : Spotcheck Naj or over-all length A Diameter 3 Material mameter c Length D Finish on radius Radius E E Concentricity of radius E to dia B Burrs, gen finish Ctralghtness Of wire Dry-fihn, passivationo Hex Material Ext length A-B \ size C Major thd dia M Width thd relief E Finish on 45 L5 ext angle sealing surface. Thd relief dia F ~.xtdia K Thread finish nt dim slt Ext dia P Radius V EXE length D Concentric within Min thd length Thread size T * lb;~dlm Ext dia U~Y i Proper dry film application in Burrs, corn~y break Ext length : t and gene:al! areas!~~, i& Angle R z workmansk)ip. Ext length w D groove depth Ext dia J AC & lo~ ~ T Ext dia ~~~ Wire groove D 0C Material Drop dimn R \ Finish on 45 Ext length p wire groove dia F Ext length B Wire gr~ove wdt c Sealing surfaceg Radius M lnt dia N EXS length ~ ~ S \ ~xt ~ia H 45 Sealing angle Radius L E~t dia J i Angle K E~t dia G Ext length E ~~X size C? Material iildl~]thd relief E i Finish - on ext angle sealing surface Thread finish Radius V Thd size T A * ---- * ro be checked prior to appli 4

9 MTL-STD-54(USAF) 7 March 97! ls i nspection for Defects Major \ Minor i roper dry film Burrs, corner application in break, and vt~,y & z areas general workmanship. Spotcheck Ext length L ~gle R Ext length w D groove depth AC and loc AB Ext dia ~! MS27637 Material MS27637 Finish on 45 sealing surf:lce Radius M 45 sealing surface External dia J ~ External dia c Drop dimension R Ext length P Wire groove dia F nternal dia N L Wire groove 0C D External length B Wire groove wdt C External length A & s Ext dia H Radius L Angle ~ Ext length E Custodian: Alr Force - Preparing activitv: Air Force - Reviewer activities: Project No F22 Air Force - 69, 82., ~ (j(,vkk?dmthj P~~.k ll~fsutk-lll G7A-7i4-L56 6a6 5

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