S/4ssr 

RSA CIRCUIAR 

DUMBER 92-1 

NATIONAL SECURI'fi AGENCY 

Washington 25, D. C., 10 Voay 1955 

Ell'F:&.UTIVE UL"'HL BESCDDED OR StJPERSEDED 

POLICY G<NEai1Ir.G FRO'JURE2m1.l' A..1'ill erocm:G 

o-:; SF~'\.RE P.'ill:La FCR Cir1F.L'Of..0GIC f\iiD nI/.A'l'iJ) t:t Pffi ·- - 1 i:~.n'!'v;.·,-.1.,.. '6V n·•n"lf.6i'--· .. :S-1'.t :< 'A'r= -- "l'rnl! .l:.'-!\1.1..u.U:-ic.I! ,u1,r. V""4W1 

.. IJJI. ...... ·\:.J.11.'1& .. :. •J:g 1.U u ~1,\:1".::. •• \;~ 

OJI 'i~ilJ Ul.il:r:Lld g-~Ea CO'i/1.3r:JJ...."i! 

GDm'J\L • • • • • • • • • • • • I 

AUSOr.rf • • • • • • • • • • • II 

DJ!ftlll..L!L'lo:lB • • • , • • • • • • • III 

POI.mY. • • • • • • • • • • • • D 

STOCK cc:.;mm. • • • • • • • • • v Ji'll!.~ll'!G • • • • • • • • • • • VI 

!l.'h1s Circular est:J.blishes the policy of the l".o.tiom.l Security 

Agency re~ procuramnt and stockins of' Bp:LrQ p:n-ta tor crntolosic and related cqu1~nt roqu11~ by dop:irtmnts and czcncioa of 

... 

the United SCtoe Govcrl:E:lcmt, hereino.ftor ref'errcd to u c~m" 

azanc1es. J?urthar, 1t defines the SP31"0 p:lr't& controlled by tho 

Director, &BA, and arco.o of' respon.s1b111ty of IlBA and cQDSUliler agencies. 

&CTio:J II - Ali'mOBI'n 

By statute e.nd under the i:a.t1om.l Security Council Directives 

Bos. 9 end 168, the D1rector1 Il'o.t1onal Securit:y A(5eDC7 is authorizod 

to: 

a. Obts:ln :fro:l tbe conl'JUblCn" c~m1os their crJPtol03ic requ1rcu...GDts end f'om:ula.te pro3J!'Q!DS f~ rosco.rch.1 develo,p:neDt, production 

and procurew:mt of crnrtologic JE:t.ter1al. 

b. Eoto.bliGh procedure for procluct1on and procureaont of' 

spec1ol.iztXJ. CCmi! equii:::sents Wiler the c03Dizance of I&. 

Bm'nm III - DlSllllil'l.'IQ.18 

:ror purpooes of' this Circular and to assure a clear undorotandiag 

by e.11 ccnccrned oZ the mmct IDterial ref'errod to, the f'ollo·.rins 

def'1uit1ono sha.11 appl.7: 

a. Cryctole~c S'C:>.re PQJ."ts. Those i::3l'ts requirGd for tho mintcr~n~o ci· Cl.9)~lc~c cqUir~nts. ~so include unique as well 

as ccn:o:on i;:u-ts. In aen~ml, th~ oez,u1i;::::?nt rotorreil to i& that to 

ursuantt E .0. 1352 
USA CIRCUL.t\R ro. 92-1 

which ~SA has assit;ned a Gbort title or other ncoenclature. 

b. Initial Crypto1o[:ic _sp~re Parts. The initia.l. stock or 

spare parts 1:or the lii3.intcr.~ncc or new cquir:.;cnts in quant.itica 

as determined by the using n5ency at the tis;ia o£ procurc:n:ent. 

c. t"".!.inten1ncc Cryotolo~ic S-pare Po:rto. "rhocc parts required 

for the t:.:1.intcsr..nco o~ cquir :ont in eddition to or upon dcp1etion of 

the ini tio.l cryptolo.:;ic er"'. re psrts. Rcquirc::cnto for thcoe p:u-to are. , estir~ted by th~ conou;-:~r c ccucico and J!".uot be adequate to :fill tbcir 

supply' line, provide for cr.:?rgcncics and m3.1nta.in their cquip;;;ent in 

opcra.tion. 

d. Un1(1UC Cryptolc~ic Sf~rc Farts. Thooe parts D'.BllUi"a.cturcd 

solely' t01· ua,;2 !'1 cryptologic c:;1uiF-":mt or Ji."'.llu:t"c.ctured vi tb tbe o.soiotance ~ pro:luctio:i toolo mmcd by r.s.'\.. A ca.to.loa ot theac p:..rto Vill be 

1osucd t.l.Dd kept current by 1;31\. for re:torcnce purposes. 

S~G:J IV - POLICY 

1. In ori!cr to provide the ~e3.na by vhich Sp!ll"O pn.rto tor cryptol~c equir;:.-~nte c.~y be ~oat ecOilo::lical.l.y end efficiently procured, the 

!7::\t:lcmo.1 S.:tcuri ty A!!,cncy vill a.ct aa the ccntro.lizcd procurement agent 

:or initio.l cryptolo~c oi::u-e i:::i.rts and tor unique r.•ainteno.nce op!l.ro 

~s required by cowrur:crs. 

2. In f'Urthcro.ncc of' thio policy, the I~":\tiona.l S<'curi ty A~ncy 

vi.11 recc:l 't'C C'.nnunl.ly i"ra e3Cb conow:ier oc;c-ncy their rcquirc::-.cnto for 

unique cryptolc~ic ci;::i.ro p':\rtB to be procured by J~I\. All ouch requirements will b~ consolicbtcd, procurcc:mt l::l.11 be initio.tcd o.nd dcliv~ry 

will be r~<1c direct f'rcl F3tluf'acturcr to concllli:cr cc;cncieo. The procurc~nt f't\c1lit:1cs of the I~::1.tionol. Security Ac;cncy v111 be o:vniln.blo 

to conctr:~r c~cnc:les ao a ccrvicc to o.ooiot them in t.h~ procu1-cm~nt or 

other th::.n uni~uc ope.re parts th:it 11?3.Y be required to o.courc continued 

opcr.i.tion of cryptolo~c cquip:.ients. 

3. In ccrmin inota.nccs it r.AY be odw.ntaceous to tho Govcrruncnt 

to alla.r a. uslng a~cncy to procure unique opa.rc p"\rta direct frcn. 

contrnctor. Tho uain3 ngcncy oln11 concult with the l!o.tiooo.l ficcurity 

Azcncy bci"orc oo doing o.nd oho.11 use the oourcc cpccificd by rm.'\. if' 

Servlce conditiona will permit. 

4. I'undc prc-l'idcd by the S:?rv1cca f:or th~ procurement or or-ire 

p:irto uill be quoted 'ln contrccta JT':ldc by the ?!o.tion11.l s~cur J t.y Aμ,cncy 

as runi:ls cupport1118 th~ orir:cii"lc p'1.rtD ordered by the uoin15 n~·~ncy. 

Coritr:-et dcliv'Jry prioritlcc wlll not be ch"..nc;r.d to fnvor oc.I· •• w.1111·~ 

.::''!"-ncico wit1'cut prior npprovc.l or the u::iing rJt:,cncy concerned. 1.'ho 

~crvicco v111 receive copl~s or ccntrncto c1tlng ocrvicc :fundo and 

vill b~ Jc~pt currently int"orr:::.d of th~ otnt110 ot controc t.o. 

- 2 -

C0NFIDENTIAL 
---

ee:IPJ IHSH'!':TAL 

mil\ ClRCU(J\H r;o. 90-2 

SI!.CTIOil V - S'l'OCK OOl'ITROL 

1. It lo the rt•nponoJb1l1Ly ot' co.eh conoumcr o.gcncy to eotnblioll 

mSnlmum otock lovcln m1d ouch oth,_.r conl.rolo n.o ncceooo.ry 1.o nuoure 

the o:v·•llf\bility or ndeqnntc crypl.ologic 01x1rc pn:rto. In comp1Ung 

corrrluL\.•cl. procurement. docwnonto. obvlo110 clcf1cS cncies or ovcrngeo 

wll 1 bo called to tho nttcntlon of' the cQnnumcr oe;ency by NGA tor oucb 

cur1·cc1. l vo o.c tlon ns the conoUDler o.gcncy mny c;leoirc t.o ta\to. 

2. In ord~r to innul"f? continued. 0pcra.t1on, tbe No.tiono.l Srcurity 

Ap;ency nnd c-nch c0Dc11111er o.gcncy will ocpnra.tcl.y mo.111ta.in ccocnt:lo.l 

otoclm 01· crypLologic cparc pa.rtn with a. m1n1DlUlll level o.bove opera 

ttono.1. roquin.•mcnt to provide -ror cmorgcncieo. 

SF.X:TIOO VI - FDJAl~Ir.O 

Flnuncing or the procurement or op.'l.re pa.rte oho.11 be in acco1-&Luce 

Vlth NSI\ Clrculo.r 111-2, ''P'iunnc1o.l Policy Covcrning Coor41no.tcd Pro 

curc~nt or Cryptologic l'.quipmcnt and Spa.re Po.rts ror the U. S. Milito.ey 

IJorvtceo. 11 

JlY Wl·1Ml\ND OF Lll:trI"J.·:Nl\N'.11 Gl•:Nl~Hl\L CJ\NlNl~i 

OFFICIAL: 

?Jc Jl(_tf~,.,t(! ~. E. C~~iu.-. Colonel., ACC 

· .lnto.nt General 

DISTRI.DUTIOII Y 

JOU:I n AClG:IUii\N 

V.."\Jor CC'nerul, t~J Air Fo1·cc 

Ch le l" or 3to.r1" 

- 3 -

€0NFIDENTIAL