MS51040


FED. SUP CLASS
5305

APPROVED 7 MAY 58         REVISED (A) 20 JANUARY 1964

MS21342 Fluted, Alloy, Cad Plated, Socket Set Screw
D NOMINAL SIZE #0
(.060)
#2
(.086)
#4
(.112)
B THREADS PER INCH 80UNF 64UNF 48UNF
J WIDTH OF SOCKET ACROSS FLATS Nom. .0280 .0350 .0500
Y CONE
POINT
ANGLE
118°+ 2° FOR LENGTHS UNDER
90°+ 2° FOR THESE LENGTHS AND OVER
5/64 7/64 5/32
L LENGTH Tolerance Dash Number Dash Number Dash Number
3/32
1/8
5/32
3/16
1/4


+ 0.010
201*
202*
215*
216*
217*
218*
219*
225*
226*
227*
22*
229*
D NOMINAL SIZE #6
(.138)
#8
(.164)
#10
(.190)
B THREADS PER INCH 40UNF 36UNF 32UNF
J WIDTH OF SOCKET ACROSS FLATS Nom. .0625 .0781 .0973
Y CONE
POINT
ANGLE
118°+ 2° FOR LENGTHS UNDER
90°+ 2° FOR THESE LENGTHS AND OVER
3/16 1/4 1/4
L LENGTH Tolerance Dash Number Dash Number Dash Number
1/8
5/32
3/16
1/4
5/16

3/8
1/2


+ 0.010
235*
236*
237*
238*
239*

240*
241*

247*
248*
249*
250*

251*
252*


258*
259*
260*

261*
262*
  • Indicates manufacturer's non stock production items.
NOTE:       For material, protective coating and other data, see sheet 2.
(A) ENTIRE STANDARD REVISED
P.A WC
Order Cust
SHIPS
ASD
TITLE
SERSCREW - HEXAGON SOCKET, CONE POINT,
BRASS, BLACK OXIDE, UNC - 3A
MILITARY STANDARD
MS 51040
PROCUREMENT SPECIFICATION
FF-S-200
SUPERSEDES: MS51061 and in part BSUX2 and BCUX3. SHEET       1       of       2
FED. SUP CLASS
5305

APPROVED 7 MAY 58         REVISED (A) FOR CHANGES SEE SHEET 1 AND 2

MATERIAL : Brass, specification QQ-B-626 or QQ-W-321.

PROTECTIVE COATING: Black Oxide in accordance with specification MIL-F-495.

THREADS: The threads shall be in accordane with Federal Specification MIL_S_7742.

DIMENTIONS: All dimensions are in inches.

PART NUMBER: The MS part number consists of the MS number, plus the dash number. Example: MS51040_201.
NOTES:
  1.   For design feature purposes, this standard takes precedence over procurement documents referenced herein.
  2.   Referenced douments shall be of the issue in effect on date of invitations for bid.
INTERCHANGEABILITY (Cont'd)

Screws covered by the dash numbers given ini MS18068 are cancelled.               Cancelled
Screw may be used until existing stocks are depleted. Use only superseding screws for new design. Replacement shall be in accordance with Table II.
TABLE II
PART NUMBERS PART NUMBERS PART NUMBERS
CANCELLED NEW CANCELLED NEW CANCELLED NEW
MS51040-1
-2
-8
-9
-15

-16
-17
-18
-19
-25
-26
MS51040-201
-202
No Replacement
No Replacement
MS51040-215

-216
-217
-218
-219
-225
-226
MS51040-27
-28
-29
-35
-36

-37
-38
-39
-40
-41
-47
MS51040-227
-228
-229
-235
-236

-237
-238
-239
-240
-241
-247
MS51040-48
-49
-50
-51
-52

-58
-59
-60
-61
-62
MS51040-248
-249
-250
-251
-252

-258
-259
-260
-261
-262
P.A WC
Order Cust
SHIPS
ASD
TITLE
SERSCREW - HEXAGON SOCKET, CONE POINT,
BRASS, BLACK OXIDE, UNC - 3A
MILITARY STANDARD
MS 51040
PROCUREMENT SPECIFICATION
FF-S-200
SUPERSEDES: MS51061 and in part BSUX2 and BCUX3. SHEET       2       of       2

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