MS51029/NASM51029


 

 

FED. SUP CLASS
5305

MS51029 per NASM51029 Flat Point, Stainless, Socket Set Screw

NOMINAL SIZE .086 .112 .138 .164 .190 .250 .3125 .375 .500
THREADS PER INCH
(UNC-3A)
56 40 32 32 24 20 18 16 13
J  SOCKET WIDTH
    ACROSS FLATS NOM
.035 .050 .062 .078 .094 .125 .156 .188 .250
C  POINT                     MAX
    DIAMETER              MIN
.047
.039
.061
.051
.074
.064
.087
.076
.102
.088
.132
.118
.172
.156
.212
.192
.291
.270
                   
L  LENGTH TOL

DASH NUMBER

PLAIN PLAIN PLAIN PLAIN SELF-
LOCK
PLAIN SELF-
LOCK
PLAIN SELF-
LOCK
PLAIN PLAIN PLAIN PLAIN PLAIN
.125
.188
.250
.312
.375

.438
.500
.562
.625
+.010 1*
2*
3*
9*
10*
11*
101
102
102
104
105

106*
107
108*
109

17*
18*
19*
20*
111
112
113
114
115

116*
117
118*
119

120
121

26*
27*
28*
29*
131*
132
133
134
135

136*
137
138*
139

140
141
142

35*
36*
37*
38*

39*
40*

41*

42*

48*
49
50*
51*

52*
53*

54*

55*


60*
61*
62*

63*
64*

65*

66*



72*
73*

74*
75*

76*

77*




83*

84*
85*

86*

87
.750
.875
1.000
+.020

   *Inactive for new design after 29 DEC 1972.

P.A.   WC

Other Cust   82

TITLE

SETSCREW - HEXAGON SOCKET, FLAT POINT, 
CORROSION - RESISTING STEEL, PASSIVATED, 
UNC - 3A, PLAIN AND SELF - LOCKING

 

 

 

FED. SUP CLASS
5305

MS51029 per NASM51029 Flat Point, Stainless, Socket Set Screw

NOMINAL SIZE .086 .112 .138 .164 .190 .250 .3125 .375 .500
THREADS PER INCH
(UNC-3A)
56 40 32 32 24 20 18 16 13
J  SOCKET WIDTH
    ACROSS FLATS NOM
.035 .050 .062 .078 .094 .125 .156 .188 .250
C  POINT                     MAX
    DIAMETER              MIN
.047
.039
.061
.051
.074
.064
.087
.076
.102
.088
.132
.118
.172
.156
.212
.192
.291
.270
                   
L  LENGTH TOL

DASH NUMBER

PLAIN PLAIN PLAIN PLAIN SELF-
LOCK
PLAIN SELF-
LOCK
PLAIN SELF-
LOCK
PLAIN PLAIN PLAIN PLAIN PLAIN
.125
.188
.250
.312
.375

.438
.500
.562
.625
+.010 1*
2*
3*
9*
10*
11*
101
102
102
104
105

106*
107
108*
109

17*
18*
19*
20*
111
112
113
114
115

116*
117
118*
119

120
121

26*
27*
28*
29*
131*
132
133
134
135

136*
137
138*
139

140
141
142

35*
36*
37*
38*

39*
40*

41*

42*

48*
49
50*
51*

52*
53*

54*

55*


60*
61*
62*

63*
64*

65*

66*



72*
73*

74*
75*

76*

77*




83*

84*
85*

86*

87
.750
.875
1.000
+.020

   *Inactive for new design after 29 DEC 1972.

P.A.   WC

Other Cust   82

TITLE

SETSCREW - HEXAGON SOCKET, FLAT POINT, 
CORROSION - RESISTING STEEL, PASSIVATED, 
UNC - 3A, PLAIN AND SELF - LOCKING

MILITARY STANDARD

MS51029
per NASM51029

PROCUREMENT SPECIFICATION
FF-S-200
SUPERSEDES: MS51030 AND IN PART MS18066, BCTX2.13 AND
BCUX4.5.
SHEET 1 OF 2

 

FED. SUP CLASS
5305 
      

NOTES:

1. MATERIAL: Corrosion-Resisting Steel , 300 Series, in accordance with procurement specification.

2. PROTECTIVE COATING: Passivated in accordance with QQ-P-35.

3. THREADS: The threads shall be in accordance with MlL-S-7742.

4. MAGNETIC PERMEABILITY: These set screws have a magnetic permeability of 2.0 max (air = 1.0)
for a field strength of H = 200 oersteds, when using a magnetic indicator per MIL-I-17214.

5. DIMENSIONS: All dimensions are in inches, unless otherwise specified.

6. PART NUMBER: The MS part number consists of the MS number, plus the dash number.

Example: M551029-101.

7. SELF-LOCKING ELEMENT:

(a) The self-locking element shall be in accordance with MIL-F-18240.

(b) For design and usage limitations, see MS15981.

(c) Location of effective locking area shall be in accordance with MS15981.

(d) Maximum ring gage diameter that locking region of setscrew must pass thru freely or with
finger pressure shall be the nominal size plus 0.010.

(e) MIL-F-18240 doesn't establish torque requirements for lengths above the dashed line.
Only a positive indication of torque is required.

8. Referenced documents shall be of the issue in effect on date of invitations for bid.

9. For design feature purposes, this standard takes precedence over procurement documents 
referenced herin.

 

INTERCHANGEABILITY


Screws covered by the dash numbers given in MS51030 are cancelled after 29 January 1964 and superseded by the screws covered on MS51029 having the same dash numbers. Cancelled screws may be used
until existing stocks are depleted. Use only MS51029 screws for new design.


Screws covered by the dash numbers given in MS18066 in part are cancelled.
Cancelled screws may be used until existing stocks are depleted. Use only the superseding screws
for new design. Replacement shall be in accordance with Table II.

 

TABLE II

CANCELLED

SUPERSEDING

CANCELLED

SUPERSEDING

CANCELLED

SUPERSEDING

CANCELLED

SUPERSEDING

MS18066

MS51029

MS18066

MS51029

MS18066

MS51029

MS18066

MS51029

DASH NUMBER

DASH NUMBER

DASH NUMBER

DASH NUMBER

1
5
10
16
22
89
33
41 

101
102
103
104
105
106
107
108 

46
2
6
11
17
23
90
34

109
111
112
113
114
115

116
 117 

42
47
54
61
3
7
12
18

118
119
120
121
131
132
133
134

24
30
35
43
48
55
62
67

135
136
137
138
139
140
141
142

P.A.                   WC

Other Cust

82

TITLE

SETSCREW - HEXAGON SOCKET, FLAT POINT, 
CORROSION - RESISTING STEEL, PASSIVATED, 
UNC - 3A, PLAIN AND SELF - LOCKING

MILITARY STANDARD

MS51029
per NASM51029

PROCUREMENT SPECIFICATION
FF-S-200

SUPERSEDES: MS51030 AND IN PART MS18066, BCTX2.13 AND BCUX4.5.

SHEET     2   of    2

 

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